Data Sheet

2
OPTIMIZED FOR SMALL SIGNAL FLOATING MEASUREMENTS
The HVFO provides capability to measure your signal as it truly is, in-circuit, without compromise. Upper-side gate drive
signals will be faithfully reproduced without loading and distortion or mysterious ringing, overshoots and transients,
providing a clear view of the Miller effect on the gate drive signal. AC and DC sensor signals oating at a high voltage
or in the presence of EMC, EFT, ESD, and RF disturbance signals can be acquired with high signal delity and correctly
correlated to in-circuit and control activities.
The HVFO architecture is simple - a single laser and ber optic cable is used for optical isolation and modulated
signal + data communication, and multiple tips achieve different operating voltage ranges.
Built-in Safety
The USB micro-B interface
also serves as the connection
for the attenuating tip to
preclude charging during
circuit connection.
Battery-powered
A long-life Li-Ion battery provides
power for ~6 hours of use.
Re-charging is via a standard USB
micro-B charging interface.
Flexible Connection to DUTs
Simplied pin socket termination for
connection to square pins, solder-in
terminals, or grippers..
Fiber Optic Cable
A 1m long cable is provided
(a 2m and a 6m long cable is
optional). Even longer cables
may be supplied by the user.
De-modulating Receiver
The optical signal is received
and demodulated to an electrical
output to the oscilloscope with
correct voltage scaling.
Amplier/Modulating Transmitter
A frequency modulating optical
transmitter is used for signal and
data transmission across a ber
optic cable.
Selectable Attenuating Tips
Use one of ve available tips for
voltages from ±1V to ±40V
Coaxial Signal Connection
A noise immune coaxial cable (blue)
is used to connect to the voltage
signal.
Reference and Shield Connection
Separate connections are provided
for Shield (black) and Reference
(green). The Reference wire
carries the signal return current
and the Shield carries current
associated with the stray parasitic
capacitances.