![background image](http://html1.mh-extra.com/html/avtech/avrq-5-b/avrq-5-b_instructions-manual_3034555026.webp)
be observed on an oscilloscope to accurately measure the dV/dt rate of the high
voltage pulse.
A Tektronix P5100 high-voltage probe with the 013-0291-00 probe-tip-to-BNC
adapter, or a similar arrangement, should be used to connect to this output.
CAUTION: Voltages as high as 1.5 kV may be present on the center conductor
of this output connector. Avoid touching this conductor. Connect to this connector
using a Tektronix P5100 high-voltage probe with the 013-0291-00 probe-tip-to-BNC
adapter, or a similar arrangement, to ensure that the center conductor is not
exposed.
DO NOT CONNECT THIS OUTPUT DIRECTLY TO AN OSCILLOSCOPE. The
oscilloscope will be damaged by the high voltages. Use a Tektronix P5100 high-
voltage probe with the 013-0291-00 probe-tip-to-BNC adapter, or a similar
arrangement.
DO NOT CONNECT COAXIAL CABLING TO THIS OUTPUT. The capacitance
of the cabling will reduce the dV/dt rates noticeably.
8. DIFF OUT Connector
. This two-pin header connector connects internally to the logic
output of the DUT (and the associated ground). This is the output that is monitored
for “glitches” caused by high dV/dt rates on the common mode voltage. It will mate
to the Tektronix P6246 differential probe, or to standard 0.1” header sockets. When
using the differential probe, install the probe so that the “-” side is on the top, and
the “+” side is on the bottom. A differential probe is used to help eliminate noise
coupled from the high-voltage signals. Please note that the P6246 has a maximum
differential input voltage range of 7V. If higher values of VCC2 are used, a different
probe will be required. If a non-differential probe is used, it is best to avoid
measuring the low-voltage “DIFF OUT” signal at the same time as a probe is
connected to the “HV PULSE” signal. Inter-channel interference in the probes and
oscilloscope may introduce significant noise on the low-voltage signal. Instead,
measure the signals separately, and use the memory storage function of the
oscilloscope if you wish to combine the signals on a single image.
26
Содержание AVRQ-5-B
Страница 52: ...Bottom side 52 ...
Страница 56: ...Top side Bottom side A P6246 differential probe was used to observe the logic outputs in the TLP2366 tests 56 ...
Страница 57: ...PCB 299B FOR ADUM241E0BRWZ 57 ...
Страница 82: ...PCB 158R2 LOW VOLTAGE POWER SUPPLY ...
Страница 87: ...DUT WIRING ON STANDARD DAUGHTERBOARD PCB 267C ...
Страница 88: ...DUT WIRING ON CUSTOMIZED TLP2366 DAUGHTERBOARD PCB 298B ...
Страница 89: ...DUT WIRING ON CUSTOMIZED ADUM241E0BRWZ DAUGHTERBOARD PCB 299B ...
Страница 91: ...PERFORMANCE CHECK SHEET 91 ...