INSTRUCTIONS MODEL AVMH-1A-C 10 VOLTS, 25 Mhz IMPULSE

AVTECH ELECTROSYSTEMS LTD. NANOSECOND WAVEFORM ELECTRONICS S I N C E 1 9 7 5

P.O. BOX 265 TEL: 888-670-8729 (USA & Canada) or +1-613-686-6675 (Intl) X BOX 5120, LCD MERIVALE OGDENSBURG, NY FAX: 800-561-1970 (USA & Canada) or +1-613-686-6679 (Intl) OTTAWA, ONTARIO U.S.A. 13669-0265 CANADA K2C 3H5 [email protected] - http://www.avtechpulse.com/

INSTRUCTIONS

MODEL AVMH-1A-C

10 VOLTS, 25 MHz

IMPULSE GENERATOR

WITH 130 – 250 ps PULSE WIDTH

SERIAL NUMBER: ______2

WARRANTY

Avtech Electrosystems Ltd. warrants products of its manufacture to be free from defects in material and workmanship under conditions of normal use. If, within one year after delivery to the original owner, and after prepaid return by the original owner, this Avtech product is found to be defective, Avtech shall at its option repair or replace said defective item. This warranty does not apply to units which have been dissembled, modified or subjected to conditions exceeding the applicable specifications or ratings. This warranty is the extent of the obligation assumed by Avtech with respect to this product and no other warranty or guarantee is either expressed or implied.

TECHNICAL SUPPORT

Phone: 888-670-8729 (USA & Canada) or +1-613-686-6675 (International) Fax: 800-561-1970 (USA & Canada) or +1-613-686-6679 (International)

E-mail: [email protected] World Wide Web: http://www.avtechpulse.com 3

TABLE OF CONTENTS

WARRANTY...... 2 TECHNICAL SUPPORT...... 2 TABLE OF CONTENTS...... 3 INTRODUCTION...... 5 AVAILABLE OPTIONS...... 5 SPECIFICATIONS...... 6 REGULATORY NOTES...... 7 FCC PART 18...... 7 EC DECLARATION OF CONFORMITY...... 7 DIRECTIVE 2002/95/EC (RoHS)...... 8 DIRECTIVE 2002/96/EC (WEEE)...... 8 AC POWER SUPPLY REGULATORY NOTES...... 9 INSTALLATION...... 10 VISUAL CHECK...... 10 POWER RATINGS...... 10 CONNECTION TO THE POWER SUPPLY...... 10 PROTECTION FROM ELECTRIC SHOCK...... 11 ENVIRONMENTAL CONDITIONS...... 12 FUSES...... 13 AC FUSE REPLACEMENT...... 13 DC FUSE REPLACEMENT...... 14 FUSE RATINGS...... 14 FRONT PANEL CONTROLS...... 15 REAR PANEL CONTROLS...... 17 GENERAL INFORMATION...... 18 BASIC TEST ARRANGEMENT...... 18 BASIC PULSE CONTROL...... 18 AMPLITUDE INTERACTION...... 19 POLARITY INVERSION...... 19 MINIMIZING WAVEFORM DISTORTIONS...... 20 USE 50Ω TRANSMISSION LINES AND LOADS...... 20 USE LOW-INDUCTANCE LOADS...... 20 4

PREVENTING DAMAGE...... 20 OPTIONS...... 21 -OS OPTION...... 21 -M OPTION...... 21 MECHANICAL INFORMATION...... 22 TOP COVER REMOVAL...... 22 ELECTROMAGNETIC INTERFERENCE...... 22 MAINTENANCE...... 23 REGULAR MAINTENANCE...... 23 CLEANING...... 23 WIRING DIAGRAMS...... 24 WIRING OF AC POWER...... 24 PCB 158P - LOW VOLTAGE POWER SUPPLY, 1/3...... 25 PCB 158P - LOW VOLTAGE POWER SUPPLY, 2/3...... 26 PCB 158P - LOW VOLTAGE POWER SUPPLY, 3/3...... 27 MAIN WIRING...... 28 PERFORMANCE CHECK SHEET...... 29

INTRODUCTION

The AVMH-1A-C is a high performance instrument capable of generating up to 10V into 50Ω loads at repetition rates up to 25 MHz. The output pulse width may be adjusted from < 130 ps to > 250 ps.

Instruments with the "-P" model suffix can generate up to +10V, whereas instruments with the "-N" model suffix can generate up to -10V.

Instruments with the "-P-PN" suffix generate up to +10V at the main output, and are supplied with an inverting transformer that can be installed on the output to generate a negative signal.

Instruments with the "-N-PN" suffix generate up to -10V at the main output, and are supplied with an inverting transformer that can be installed on the output to generate a positive signal.

The output is designed to drive 50Ω loads. (A 50Ω load is required for proper operation.) The output is AC-coupled.

This instrument is intended for use in research and development laboratories.

AVAILABLE OPTIONS

The AVMH-1A-C is available with several options:

-M Option: a monitor output is provided.

-OS Option: an externally generated DC offset can be added to the output. 6

SPECIFICATIONS

Model1: AVMH-1A-C Max.5 amplitude (50Ω load4): 10 V Pulse width: 130 - 250 ps Pulse width measured at: 50% (FWHM) PRF, internal trigger: 1 kHz - 25 MHz external trigger: 0 - 25 MHz Polarity2: Positive or negative or both (specify) Propagation delay: ≤ 40 ns (Ext trig in to pulse out) Jitter: ± 15 ps (Ext trig in to pulse out) DC offset: Optional3: Apply the required externally-generated DC offset to back-panel solder terminals (+50 Volts, 250 mA max)

Trigger required: 7 TTL-level (Low: 0V, High: +3V to +5V), ≥ 10 ns, RIN = 50Ω . (ext trig mode) Sync output: +3 Volts, width varies with PRF (always > 10 ns), drives ≥ 50Ω Sync delay: Variable 0 to 80 ns, Sync out to pulse out Monitor output: Optional8. Provides a ÷11 (-21 dB) attenuated coincident replica of the main output, into 50 Ohms. Connectors: Out, Monitor: SMA, Trig: BNC Power requirement: 100 - 240 Volts, 50 - 60 Hz Dimensions: H×W×D: 100 x 215 x 375 mm (3.9” x 8.5” x 14.8”) Chassis material: Anodized aluminum, with gray plastic trim. Temperature range: +5°C to +40°C

1) -C suffix indicates stand-alone lab instrument with internal clock and line powering. (See http://www.avtechpulse.com/formats for additional details of the basic instrument formats). 2) Indicate desired polarity by suffixing model number with -P or -N (i.e. positive or negative) or -P-PN or -N-PN for dual polarity option where the suffix preceding -PN indicates the polarity at the mainframe output port. 3) For DC offset option add suffix -OS. 4) A 50 Ohm load is required. Other loads may damage the instrument. Consult Avtech ([email protected]) if you need to drive other load impedances. 5) For operation at amplitudes of less than 20% of full-scale, best results will be obtained by setting the amplitude near full-scale and using external attenuators on the output. 6) Maximum amplitude falls by 10% for PRF above 20 MHz. 7) An input impedance of ≥1 kΩ can also be provided (-Z1K option). 8) For monitor option add the suffix -M to the model number. 7

REGULATORY NOTES

FCC PART 18

This device complies with part 18 of the FCC rules for non-consumer industrial, scientific and medical (ISM) equipment.

This instrument is enclosed in a rugged metal chassis and uses a filtered power entry module (where applicable). The main output signal is provided on a shielded connector that is intended to be used with shielded coaxial cabling and a shielded load. Under these conditions, the interference potential of this instrument is low.

If interference is observed, check that appropriate well-shielded cabling is used on the output connectors. Contact Avtech ([email protected]) for advice if you are unsure of the most appropriate cabling. Also, check that your load is adequately shielded. It may be necessary to enclose the load in a metal enclosure.

If any of the connectors on the instrument are unused, they should be covered with shielded metal “dust caps” to reduce the interference potential.

This instrument does not normally require regular maintenance to minimize interference potential. However, if loose hardware or connectors are noted, they should be tightened. Contact Avtech ([email protected]) if you require assistance.

EC DECLARATION OF CONFORMITY

We Avtech Electrosystems Ltd. P.O. Box 5120, LCD Merivale Ottawa, Ontario Canada K2C 3H5 declare that this pulse generator meets the intent of Directive 2004/108/EG for Electromagnetic Compatibility. Compliance pertains to the following specifications as listed in the official Journal of the European Communities:

EN 50081-1 Emission

EN 50082-1 Immunity 8 and that this pulse generator meets the intent of the Low Voltage Directive 72/23/EEC as amended by 93/68/EEC. Compliance pertains to the following specifications as listed in the official Journal of the European Communities:

EN 61010-1:2001 Safety requirements for electrical equipment for measurement, control, and laboratory use

DIRECTIVE 2002/95/EC (RoHS)

This instrument is exempt from Directive 2002/95/EC of the European Parliament and of the Council of 27 January 2003 on the Restriction of the use of certain Hazardous Substances (RoHS) in electrical and electronic equipment. Specifically, Avtech instruments are considered "Monitoring and control instruments" (Category 9) as defined in Annex 1A of Directive 2002/96/EC. The Directive 2002/95/EC only applies to Directive 2002/96/EC categories 1-7 and 10, as stated in the "Article 2 - Scope" section of Directive 2002/95/EC.

DIRECTIVE 2002/96/EC (WEEE)

European customers who have purchased this equipment directly from Avtech will have completed a “WEEE Responsibility Agreement” form, accepting responsibility for WEEE compliance (as mandated in Directive 2002/96/EC of the European Union and local laws) on behalf of the customer, as provided for under Article 9 of Directive 2002/96/EC.

Customers who have purchased Avtech equipment through local representatives should consult with the representative to determine who has responsibility for WEEE compliance. Normally, such responsibilities with lie with the representative, unless other arrangements (under Article 9) have been made.

Requirements for WEEE compliance may include registration of products with local governments, reporting of recycling activities to local governments, and financing of recycling activities. 9

AC POWER SUPPLY REGULATORY NOTES

This instrument converts the AC input power to the +24V DC voltage that powers the internal circuitry of this instrument using a Tamura AAD130SD-60-A switching power supply. According to the manufacturer, the Tamura AAD130SD-60-A has the following certifications:

UL60950-1 IEC60950 -1 CSA C22.2 No. 60950- 1 EN60950 -1 and is compliant with:

EN61000-3-2 EN61000-4-2 Level 2 EN61000-4-2 Level 3 (Air Only) EN61000-4-4 Level 3 EN61000-4-5 Level 3 EN61000-4-11 CISPR 11 and 22 FCC Part 15 Class B (conducted) 10

INSTALLATION

VISUAL CHECK

After unpacking the instrument mainframe and the transformer module, examine to ensure that they have not been damaged in shipment. Visually inspect all connectors, knobs, and handles. Confirm that a power cord and an instrumentation manual (this manual), are with the instrument. If the instrument has been damaged, file a claim immediately with the company that transported the instrument.

POWER RATINGS

This instrument is intended to operate from 100 - 240 V, 50 - 60 Hz.

The maximum power consumption is 57 Watts. Please see the “FUSES” section for information about the appropriate AC and DC fuses.

This instrument is an “Installation Category II” instrument, intended for operation from a normal single-phase supply.

CONNECTION TO THE POWER SUPPLY

An IEC-320 three-pronged recessed male socket is provided on the back panel for AC power connection to the instrument. One end of the detachable power cord that is supplied with the instrument plugs into this socket. The other end of the detachable power cord plugs into the local mains supply. Use only the cable supplied with the instrument. The mains supply must be earthed, and the cord used to connect the instrument to the mains supply must provide an earth connection. (The supplied cord does this.)

Warning: Failure to use a grounded outlet may result in injury or death due to electric shock. This product uses a power cord with a ground connection. It must be connected to a properly grounded outlet. The instrument chassis is connected to the ground wire in the power cord.

The table below describes the power cord that is normally supplied with this instrument, depending on the destination region: 11

Destination Region Description Option Manufacturer Part Number

United Kingdom, Hong Kong, BS 1363, -AC00 Qualtek 370001-E01 Singapore, Malaysia 230V, 50 Hz AS 3112:2000, Australia, New Zealand -AC01 Qualtek 374003-A01 230-240V, 50 Hz Continental Europe, Korea, European CEE 7/7 -AC02 Qualtek 364002-D01 Indonesia, Russia “Schuko” 230V, 50 Hz NEMA 5-15, North America, Taiwan -AC03 Qualtek 312007-01 120V, 60 Hz SEV 1011, Switzerland -AC06 Qualtek 378001-E01 230V, 50 Hz SABS 164-1, South Africa, India -AC17 Volex 2131H 10 C3 220-250V, 50 Hz JIS 8303, Japan -AC18 Qualtek 397002-01 100V, 50-60 Hz SI 32, Israel -AC19 Qualtek 398001-01 220V, 50 Hz GB 1002-1, China -AC22 Volex 2137H 10 C3 220V, 50 Hz

PROTECTION FROM ELECTRIC SHOCK

Operators of this instrument must be protected from electric shock at all times. The owner must ensure that operators are prevented access and/or are insulated from every connection point. In some cases, connections must be exposed to potential human contact. Operators must be trained to protect themselves from the risk of electric shock. This instrument is intended for use by qualified personnel who recognize shock hazards and are familiar with safety precautions required to avoid possibly injury. In particular, operators should:

1. Keep exposed high-voltage wiring to an absolute minimum.

2. Wherever possible, use shielded connectors and cabling.

3. Connect and disconnect loads and cables only when the instrument is turned off.

4. Keep in mind that all cables, connectors, oscilloscope probes, and loads must have an appropriate voltage rating.

5. Do not attempt any repairs on the instrument, beyond the fuse replacement procedures described in this manual. Contact Avtech technical support (see page 2 for contact information) if the instrument requires servicing. Service is to be performed solely by qualified service personnel. 12

ENVIRONMENTAL CONDITIONS

This instrument is intended for use under the following conditions:

1. indoor use; 2. altitude up to 2 000 m; 3. temperature 5 °C to 40 °C; 4. maximum relative humidity 80 % for temperatures up to 31 °C decreasing linearly to 50 % relative humidity at 40 °C; 5. Mains supply voltage fluctuations up to ±10 % of the nominal voltage; 6. no pollution or only dry, non-conductive pollution. 13

FUSES

This instrument contains four fuses. All are accessible from the rear-panel. Two protect the AC prime power input, and two protect the internal DC power supplies. The locations of the fuses on the rear panel are shown in the figure below:

Fuses #1 and #2 Fuse #4 Fuse #3 (AC fuses) (DC fuse) (DC fuse)

AC FUSE REPLACEMENT

To physically access the AC fuses, the power cord must be detached from the rear panel of the instrument. The fuse drawer may then be extracted using a small flat-head screwdriver, as shown below:

Pry out the fuse drawer using a screwdriver.

Fuse Drawer 14

DC FUSE REPLACEMENT

The DC fuses may be replaced by inserting the tip of a flat-head screwdriver into the fuse holder slot, and rotating the slot counter-clockwise. The fuse and its carrier will then pop out.

FUSE RATINGS

The following table lists the required fuses:

Nominal Recommended Replacement Part Fuses Mains Rating Case Size Littelfuse Part Digi-Key Stock Voltage Number Number 0.5A, 250V, #1, #2 (AC) 100-240V 5×20 mm 0218.500HXP F2416-ND Time-Delay 1.0A, 250V, #3 (DC) N/A 5×20 mm 0218001.HXP F2419-ND Time-Delay 0.8A, 250V, #4 (DC) N/A 5×20 mm 0218.800HXP F2418-ND Time-Delay

The recommended fuse manufacturer is Littelfuse (http://www.littelfuse.com).

Replacement fuses may be easily obtained from Digi-Key (http://www.digikey.com) and other distributors. 15

FRONT PANEL CONTROLS

3 7 1 4

2 5 6 8 9

1. POWER Switch. This is the main power switch.

2. OVERLOAD Indicator. When the instrument is powered, this indicator is normally green, indicating normal operation. If this indicator is yellow, an internal automatic overload protection circuit has been tripped. If the unit is overloaded (by operating at an exceedingly high duty cycle or by operating into a very low impedance), the protective circuit will disable the output of the instrument and turn the indicator light yellow. The light will stay yellow (i.e. output disabled) for about 5 seconds after which the instrument will attempt to re-enable the output (i.e. light green) for about 1 second. If the overload condition persists, the output will be disabled again (i.e. light yellow) for another 5 seconds. If the overload condition has been removed, the instrument will resume normal operation.

This overload indicator may flash yellow briefly at start-up. This is not a cause for concern.

3. PRF Range Switch and Fine Dial. This switch sets the pulse repetition frequency (PRF) range of the internal oscillator. The marked value of each position is the upper limit of the range, approximately. The fine dial directly below the switch varies the PRF within the set range. When set to the “EXT” position, the instrument is triggered by externally-generated pulses applied to the TRIG input. 16

4. DELAY Control. Controls the relative delay between the reference output pulse provided at the SYNC output and the main output. This delay is variable over the range of 0 to 50 ns, approximately. At high frequencies, this delay should be kept nearly fully counter-clockwise, so that the delay does not exceed the period (otherwise, the triggering may stop). The variable delay circuitry only functions in the internal trigger mode. The delay is not adjustable when triggering externally.

5. TRIG Input. The external trigger signal is applied at this input when the PRF range switch is in the “EXT” position.

For standard units, a TTL logic level pulse (i.e., 0V = TTL LOW, +3V to +5V = TTL HIGH) is required to trigger this input, and the input impedance is 50Ω to ground (or 1kΩ, for units with the -Z1K option).

The input pulse width should be > 10 ns.

6. SYNC Output. This output precedes the main output, and is typically used to trigger an oscilloscope. When triggering internally, the SYNC pulse width varies, but is always > 10 ns. When triggering externally, the SYNC output is a buffered replica of the TRIG input. The amplitude is fixed at +3V approximately, and this output will drive 50 Ohms or higher.

7. Pulse Width Controls. These two dials control the pulse width. The TR dial determines the position of the impulse rising edge, and the TF dial determines the position of the impulse falling edge. Used together, they control the pulse width.

8. Amplitude Control. This dial controls the pulse amplitude.

9. OUT Connector. This is the main output. (This output requires a 50Ω load to function properly). 17

REAR PANEL CONTROLS

4 1 3

OS GND M

1. AC POWER INPUT. An IEC-320 C14 three-pronged recessed male socket is provided on the back panel for AC power connection to the instrument. One end of the detachable power cord that is supplied with the instrument plugs into this socket.

2. AC FUSE DRAWER. The two fuses that protect the AC input are located in this drawer. Please see the “FUSES” section of this manual for more information.

3. DC FUSES. These two fuses protect the internal DC power supplies. Please see the “FUSES” sections of this manual for more information.

4. OS INPUT CONNECTOR. (Present on units with -OS option only.) A DC offset in the range of ±50V (250 mA max) may be applied to this solder terminal. The DC offset will appear on the output. When this feature is not used, the OS input should be connected to ground (using the adjacent GND connector). This is especially important when driving loads containing a diode.

5. GND CONNECTOR. This solder terminal is connected to ground. It may be used to ground the OS input connector.

6. M OUTPUT CONNECTOR. (Present on units with -M option only.) This SMA connector output provides a 20 dB attenuated coincident replica of main output, for monitoring purposes. 18

GENERAL INFORMATION

BASIC TEST ARRANGEMENT

The AVMH-1A-C should be tested with a sampling oscilloscope with a bandwidth of at least 15 GHz to properly observe the high-speed waveform. A typical test arrangement is shown below:

AVTECH SAMPLING PULSER OSCILLOSCOPE BW > 15 GHz MAIN OUTPUT CONNECTOR 50 OHM INPUT

40 dB AC ATTENUATOR POWER

TRIG TRIG CONNECTOR CONNECTOR

ALL CABLES: 50 OHM COAXIAL

The attenuators are required to prevent damage to the sampling oscilloscope. A 40 dB attenuator with sufficient voltage rating should be used on the main output.

BASIC PULSE CONTROL

This instrument can be triggered by its own internal clock or by an external TTL trigger signal. When triggered internally, two mainframe output channels respond to the trigger: OUT and SYNC.

 OUT. This is the main output.

 SYNC. The SYNC pulse is a 3V, > 10 ns wide reference pulse used to trigger oscilloscopes or other measurement systems.

These pulses are illustrated below: 19

SYNC > 10 ns (generated by the 3V, FIXED internal oscillator)

DELAY PULSE WIDTH

AMPLITUDE, VARIABLE MAIN OUTPUT

Figure A

The AVMH-1A-C can also be triggered by a TTL-level pulse applied to the TRIG input.

AMPLITUDE INTERACTION

Some properties of the output pulse may change as a function of the amplitude setting. For some demanding applications, it may be desirable to use a combination of external attenuators and the amplitude pot to achieve the desired output amplitude.

POLARITY INVERSION

Instruments with the "-P-PN" suffix generate up to +10V at the main output, and are supplied with an AVX-2 inverting transformer that can be installed on the mainframe output. A negative pulse is then obtained at the out port of the AVX-2 module.

Instruments with the "-N-PN" suffix generate up to -10V at the main output, and are supplied with an AVX-2 inverting transformer that can be installed on the mainframe output. A positive pulse is then obtained at the out port of the AVX-2 module.

When using the transformer with dual-polarity models with the “-OS” option, the external offset must be added to the DC terminal of the inverting transformer. Do not apply the offset to the rear-panel offset terminal on the mainframe (if present). 20

MINIMIZING WAVEFORM DISTORTIONS

USE 50 Ω TRANSMISSION LINES AND LOADS

Connect the load to the pulse generator with 50Ω transmission lines (e.g. RG-58 or RG-174 cable).

This instrument requires a 50Ω load for proper operation. It will not properly drive a high-impedance load. The output stage will be damaged if it is operated into an open circuit (or any other high impedance). Failures due to improper output loading are not covered by the warranty.

USE LOW-INDUCTANCE LOADS

Lenz’s Law predicts that for an inductive voltage spike will be generated when the current through an inductance changes. Specifically, VSPIKE = L × dILOAD/dt, where L is the inductance, ILOAD is the load current change, and t is time. For this reason, it is important to keep any parasitic in the load low. This means keeping wiring short, and using low inductance components. In particular, wire-wound resistors should be avoided.

PREVENTING DAMAGE

The AVMH-1A-C may fail if triggered at a PRF greater than 25 MHz.

This unit is designed to operate into a load impedance of 50 Ohms and the output stage will be damaged if it is operated into an open circuit (or any other high impedance). Failures due to improper output loading are not covered by the warranty.

The lifetime of the switching elements in the pulse generator module is proportional to the running time of the instrument. For this reason the prime power to the instrument should be turned off when the instrument is not in use. 21

OPTIONS

The AVMH-1A-C is available with these options:

-OS OPTION

This option allows an externally generated DC offset to be added to the output. The desired DC offset is applied to the back panel OS terminal, which is connected to the output centre conductor trhough a high-quality RF inductor. Do not exceed 50V, 250 mA.

-M OPTION

This option provides a monitor output, which is an attenuated replica of the main output. The monitor is connected to the main output through a 470 Ohm resistor, which results in an attenuation of approximately 20 dB (i.e., ÷10) when the monitor output is terminated with a 50 Ohm load.

For models with the “-OS” option, the monitor output does not include the effect of the added offset.

The monitor output should be terminated with a 50 Ohm load. 22

MECHANICAL INFORMATION

TOP COVER REMOVAL

If necessary, the interior of the instrument may be accessed by removing the four Phillips screws on the top panel. With the four screws removed, the top cover may be slid back (and off).

Always disconnect the power cord and allow the instrument to sit unpowered for 10 minutes before opening the instrument. This will allow any internal stored charge to discharge.

There are no user-adjustable internal circuits. For repairs other than fuse replacement, please contact Avtech ([email protected]) to arrange for the instrument to be returned to the factory for repair. Service is to be performed solely by qualified service personnel.

Caution: High voltages are present inside the instrument during normal operation. Do not operate the instrument with the cover removed.

ELECTROMAGNETIC INTERFERENCE

To prevent electromagnetic interference with other equipment, all used outputs should be connected to shielded loads using shielded coaxial cables. Unused outputs should be terminated with shielded coaxial terminators or with shielded coaxial dust caps, to prevent unintentional electromagnetic radiation. All cords and cables should be less than 3m in length. 23

MAINTENANCE

REGULAR MAINTENANCE

This instrument does not require any regular maintenance.

On occasion, one or more of the four rear-panel fuses may require replacement. All fuses can be accessed from the rear panel. See the “FUSES” section for details.

CLEANING

If desired, the interior of the instrument may be cleaned using compressed air to dislodge any accumulated dust. (See the “TOP COVER REMOVAL” section for instructions on accessing the interior.) No other cleaning is recommended. WIRING DIAGRAMS WIRING OF AC POWER

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#2 SS FLA T W ASH ER, 02W M 188

X 2 8

#2 SS FLA T W ASH ER, 02W M 188

A A

T i t l e LOW VOLTAGE D C/D C POWER SU PPLY

D a t e R e v i s i o n 29-Jul-2014

Z:\m jcfiles\pcb\158\sw itching60h z.ddb - 1 58P\pcb 158P .sc h

1 2 3 4 5 6 PCB 158P - LOW VOLTAGE POWER SUPPLY, 2/3

1 2 3 4 5 6 F 3 FUSEHOLDER X 2 1 A A B X

PC B158AL,V2 B RA CKET 6 4 0 4 4 5 - 6 T P 3 1 2 3 4 T P 6 J 6 TEST-LOOP TEST-LOOP X 2 2 S 1 A 1 S 1 B , O R D C 2 L 5 S 2 A , O R D C 3 B U + D BA RE 15 8P PCB S 2 B 77A -1 00M -0 1 D 4 5 C 2 1 C 2 0 C 1 9 6 2 . 2 u F 4 7 u F / 5 0 V 4 7 u F / 5 0 V - 1 5 V - 1 5 V R 2 0 C 1 6 C 2 2 1 0 K D 7 + 1 5 V + 1 5 V 1 0 0 0 u F / 3 5 V 1 0 0 0 u F / 3 5 V 1 . 5 K E 3 9 A

GND

X 6 TIE-DOW N-350 G Y E S G Y E S R N

1 - 6 4 0 4 5 6 - 0 R N

V V V V V V D

J 2 0 5 5 V V 4 4 J 1 5 V N 1 1 1 5 5 2 2 1 5

6 4 0 4 4 5 - 9 + + + - - + + G + + J 1 0 R 5 C C 0 O H M

1 2 3 4 5 6 7 8 9 3 2 0

1 2 3 4 5 6 7 8 9 1 1 6 4 0 4 5 6 - 3 U 2 P - O U T # 1 7 8 1 0 1 3 + 1 0 V V i n V o u t U 5 D R 2 9 N NO T USED (78 24)

G C 1 1 3 4 7 u F / 3 5 V NO T USE D (0) V i n V o u t R 3 0 D N 2 0 O H M

C 7 G C 1 3 U 1 4 7 u F / 5 0 V 4 7 u F / 5 0 V L 1

5 - 1 5 V 2 - 2 77A -1 01M -0 1 FOR NOIS Y SUBC IR CU IT S - C 8 C 4 U 1 1 4 2 . 2 u F 4 7 u F / 3 5 V 7 8 1 5 C 1 2 1 3 V i n V o u t 1 J 9 + L 2 D

3 + 1 5 V 6 4 0 4 4 5 - 2 N

+ G C 3 2 77A -1 01M -0 1 C 3 4 7 u F / 3 5 V B C 6 B 2 . 2 u F 4 7 u F / 3 5 V PY B15-Q 24-D15 2

U 4 L 4 5 - 5 V U 1 2 - 2 77A -1 01M -0 1 7 8 0 5 - C 1 2 C 5 1 3 V i n V o u t 4 2 . 2 u F 4 7 u F / 3 5 V C D N

G C 3 3 1 + L 3 4 7 u F / 3 5 V

3 + 5 V 4 3 2 5 4 3 3 2 6 5 4

+ 2 2 2 1 1 1 2 2 1 1 1

77A -1 01M -0 1 2 C 1 1 C 9 4 7 u F / 3 5 V PY B15-Q 24-D5 2 . 2 u F U 8 C C N T N N N C T T T I I / / I I / - U U U U + + +

N N NO T USED (M KC 03) N O O O O - - + + C C C T T / / /

U 1 0 N N U 9 I I U - - N N N C C U N / / I O N NO T USED (SB 03/SB0 5) O I 5 NO T USE D (2.2uF ) + N N - + - -

C 3 1 0 1 2 2 3 9

- 1 1

NO T USED (47 uF/35V) 1 2 3 0 1 2 4 C 3 0 1 1 1 C A J 1 2 J 1 1 A C 2 7 1 I N + + L 6 1 1 NO T USED (47 uF/50V) 3 IN- T i t l e C 2 9 + 2 2 NO T USED (77 A-101M -01) GND D C /D C , AN D OVER -VOLTAGE PROTEC TION NO T USED (47 uF/35V) 3 3 O U T + 4 4 N O T U S E D NORM A LLY UNUSED OUT- D a t e R e v i s i o n NO T USED (64 0456-4) 5 C 2 8 29-Jul-2014 NO T USED (47 uF/50V) NO T USED (64 0445-5) Z:\m jcfiles\pcb\158\sw itching60h z.ddb - 1 58P\pcb 158P _ovp.sch

1 2 3 4 5 6 PCB 158P - LOW VOLTAGE POWER SUPPLY, 3/3

1 2 3 4 5 6

R 2 1 1 . 5 K O Y X 2 D 6 R 2 6 CAPBANK

1 5 K C 2 3 1 0 0 0 u F / 3 5 V LED H V W A R N I N G

D R 1 7 D EXT NO T USE D (0) SHOR TS OU T B AS E W HE N CH AR GING. 4 3 R 1 5 B U + 0 O H M K 4 U 3 PS7 206-1A-F3-A K 7 7 8 1 2 F 2 C 2 6 4 3 1 3 + - V i n V o u t P - O U T # 3 FUSEHOLDER D

D 4 N

A A B X C 2 5 G

0 . 1 u F 1 2 2 1 + - 4 7 u F / 5 0 V C 1 0 R 4 4 7 u F / 5 0 V

T P 4 1 2 3 4 1 5 0 1 N 5 3 0 5 NO T USED (A QZ1 02) 2 R 2 5 K 5 W LA R10 0FE (0.1 OH M S) TEST-LOOP D 5 3 3 4 R 2 R 8 2 NO T USED (22 A Y) W LA R10 0FE (0.1 OH M S) A Q Z 1 0 2 T P 5 K 1 1 2 5 1 4 3 + - P - O U T # 2

TEST-LOOP 25C TQ0 40PB F, IN 59120 2B04 000G H EATSIN K NO T USED (G 2RL-14-D C24) 5 4 R 2 8 2 1 + - + N

P - O U T # 1 I V C + 0 O H M C

8 Q 1 D R 3 M P Q 2 2 2 2 R 1 0 R 1 4 T D U N

0 N U 6 3 0 0 1 2 0 O Y I 1 O G - 5 . 1 K L T 6 1 0 6 C S 5 K 2 K 3 1 2 R 6 - +

D 9 4 3 1 2 3 + - 4 7 0 3 4 D 2 N E G I N - + N-OUT DIS ABLE AT POW ER -OFF 1 N 4 1 4 8 R 2 3 2 1 R 2 7 R 1 3 + - 4 7 0 1 0 0 4 7 0 D 1 0 1 N 4 7 3 3 A A Q Z 1 0 2 R 1 NO T USED (A QZ1 02) - 1 5 V + 1 5 V K 6 NO T USE D (0) DIS ABLE AT POW ER -ON 1 N 4 1 4 8 4 3 + - (+15V LA GS H V BY 500 ms)

R 2 4 2 1 + - + 1 5 V C 1 5 D 1 4 7 0 1 N 4 7 3 6 A NO T USED (A QZ1 02) Q 1 C 4

R 2 2 1 M P Q 2 2 2 2 0 . 1 u F R 1 9 3 0 0 2 R 1 1 R 7 U 7

1 AMBER 4 . 7 K 7 5 K 8 B C 2 4 V + 6 8 0 B 4 7 u F / 3 5 V 4 + 1 5 V RESET DIS ABLE OLO W HEN CH ARGING. 2 TRIG 6 3 THR OUT 5 R 1 8 CONT

1 Q 1 A 7 1 . 2 K DIS TEST-LOOP M P Q 2 2 2 2 R 1 6 T P 2 1 1 . 2 K

3 GND GREEN C 1 7 S E 5 5 5 P C 1 4 0 . 1 u F

7 Q 1 B 4 7 u F / 3 5 V R 9 M P Q 2 2 2 2 C 2 C 1 8 3 K R 1 2

2 2 0 u F , 1 6 V 5 1 K T P 1 X 3 X 1 6 - 3 2 M O U N T KEYSTO NE 621 NO T USED (10 00uF/35V ) TEST-LOOP

A A - 1 5 V - 1 5 V X 1 0 6 - 3 2 M O U N T X 7 T i t l e OVER-CURRENT PROTECTION + 1 5 V + 1 5 V 591 202B 04000G HEA TSINK , IN STA LLED A S LOW AS PO SSIBLE D a t e R e v i s i o n 29-Jul-2014 GND Z:\m jcfiles\pcb\158\sw itching60h z.ddb - 1 58P\pcb 158P _switching.s ch

1 2 3 4 5 6 MAIN WIRING

1 2 3 4 5 6

CO NN 1 IF N O -OT OR -EO P9 768-ND FA N1 OS

+ - GND N C

D A GND - F C C + N N D D

GND J10 / I I /

N N SW 1

N N OF F C C G G

D CO NN 2 D

J8 D D S

+24 V, NO OLO C

H ON +24 V, NO OLO D C GND +24, NO OLO J6 BD 1

V OT O UT +5V N SY V V V V D D V V GND 5 5 5 5 5 0 5 N N - S T D D D 1 + + + K D O 1 1

+5V R EG - G G POS O LO P U L + + N N N N N 20 AW G T O O

-5V OL O GN D G G G G A

+ 5 B / E V

-15V NEG OLO/+IN / -15V -15V N 2 P

J2 + I 4

+15 V NSY J3 GND - 1 +15 V +15 V A U + 3 C +15 V REG B GND 20 AW G 20 OR 24 AWG J4 2 +10 V J1 OUT 1 IN 24 AW G 20 AW G PCB231A -OT - J9 - FA N FOR -E O AND -OT UNITS ONLY +

A +5V K AMP, 1K TF, 1 K TR , 1K OT , 1K W W W W

J7 C R1 C R2 C R3 C R4

W IF NOT -E A W W W IF -OT AMB ER C GND J5 C GR EEN W W IF -EA W W C C C C C C C C INT -5V PC B 158P INT

EXT A EXT A

-EO UNITS ONLY

CONN 6 CONN 7 TR IG SYNC M1 AVMH-1A-PG C G D D I N +24 V -15V N N B R Y GND OS B G T G S GND +5. 8V +HV N/C CHS GN D GND N/C -HV DLY DELAY, 1K (-D OR -ED UNITS ONLY)

W GND TF

C R5 AMP OUT (SMA) TW W IF NOT -E D TR T N M I U W IF -ED CO NN 8 O C OUT C INT

EXT A CO NN 9 M (-M UNITS ONLY)

HIF BIAS VTR A LOF A -5V -5V +5V CHANGES ON PCB 216C: POT A DJ US TMEN TS +5V -15V 1. INS TALL R8 = 51 K (BOOSTS GAIN TO +1.2) B = OFFSE T (ADJUS T S O VTR = -0.7 V AT ZERO AMP) AVMH-1A-C -15V +15 V 2. INS TALL 10K POTS A, B, AND C. A = LOW FREQ S CALE (ADJUST S O VTR AT MAX AMP = -13V IN LOW RANGES) +15 V GND 3. INS TALL U4 = AD73 4 (MULTIPLIER) C = HIGH FREQ SCALE (ADJUST S O V TR AT MAX AMP = -6V IN 25 MHz RANGE) Pri nte d Re visi on 22-May-2015 2A M2 CL 8 - 219E Z:\mjcfiles\circuits\avmh\avmh.Ddb - AVMH-1A-C\AVMH-1A-C v2.sch

1 2 3 4 5 6 29

PERFORMANCE CHECK SHEET