SPECIFICATIONS
Model1: AVR-EB4-B
Recovery type: Reverse recovery
Intended application: High-speed rectifiers
Basic waveform: A positive pulse followed immediately by a negative pulse
Pulse polarity: - +
Voltage output2,4,6:
(to RL = 5 Ω) -2V to -2 V +5V to +1 V
Corresponding diode current2,4
(approx., depends on VDIODE): -4 mA to -4A +1 mA to +2A
Pulse width (FWHM): 2 us - 2 us
Rise time (1 %-9 %): < 4.5 ns < 1 us
Output impedance during pulse
(inside the mainframe): ≤ 2 Ohm 5 Ohms
Maximum PRF: 1 Hz
Variable delay (sync out to
main out): Follows + pulse to ±1s,
variable
Included test jig3: See tables on later pages.
Connectors: BNC on mainframe, SMA on jigs
GPIB & RS-232: Standard on -B units. See http://www.avtechpulse.com/gpib for details.
Ethernet port, for remote
control using VXI-11.3, ssh,
telnet, & web:
Included. Recommended as a modern alternative to GPIB / RS-232.
See http://www.avtechpulse.com/options/vxi for details.
Settings resolution: The resolution of the timing parameters (pulse width, delay, period) varies, but is always
better than .15% of (|set value| + 2 ns).
The amplitude resolution is < .1% of the maximum amplitude.
Settings accuracy: Typically ± 3% after 1 minute warmup, for timing parameter. For high-accuracy
applications requiring traceable calibration, verify the output parameters with a
calibrated oscilloscope4,1 .
Trigger modes: Internal trigger, external trigger (TTL level pulse, > 1 ns, 1 kΩ input impedance),
front-panel “Single Pulse” pushbutton, or single pulse trigger via computer command.
Sync output: > +3 Volts, > 5 ns, will drive 5 Ohm loads
Gate input: Active high or low, switchable. Suppresses triggering when active.
Power requirements: 1 - 24 Volts, 5 - 6 Hz
Dimensions: H x W x D: 1 mm x 43 mm x 375 mm (3.9” x 17” x 14.8”)
Chassis material: cast aluminum frame and handles, blue vinyl on aluminum cover plates
Temperature range: +5°C to +4 °C
1) -B suffix indicates IEEE-488.2 GPIB and RS-232 control of amplitude, pulse width, PRF and delay (see http://www.avtechpulse.com/gpib).
2) For operation at amplitudes of less than 1 % of full-scale, best results will be obtained by setting the amplitude near full-scale and using external
attenuators on the output.
3) Customized jigs available upon request.
4) The amplitude settings should not be relied upon for any degree of accuracy, because the dynamics of the device under test can affect the actual
generated waveforms. Amplitude settings should always be verified by oscilloscope measurements.
5) Thus the diode must come to forward steady-state within 5 ns.
6) The diode must have a breakdown voltage exceeding these amplitude limits. Contact Avtech for special arrangements if IMAX × 5 Ω > VBR.
7) The full forward pulse width is 2 us, but the reverse pulse is super-imposed on the forward pulse 5 ns after the start of the forward pulse.
8) Increases to 4.5 ns for units with the -DIPFP option, due to the switching relay inductance.
9) Depends on the parasitic inductance of the DUT and its leads.
1 ) These instruments are provided with a basic calibration checksheet, showing a selection of measured output parameters. These measurements are
performed with equipment that is calibrated on a regular basis by a third-party ISO/IEC 17 25:2 5 accredited calibration laboratory. However,
Avtech itself does not claim any accreditation. For applications requiring traceable performance, use a calibrated measurement system rather than
relying on the accuracy of the pulse generator settings.
