Datasheet

2
OPTIMIZED FOR SMALL SIGNAL FLOATING MEASUREMENTS
The HVFO108 faithfully reproduces upper-side gate drive signals without loading and distortion, allowing a clear view
of the Miller effect. 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 HVFO108 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 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/grey) and
Reference (green). The Reference
wire carries the signal return
current and the Shield carries
current associated with the stray
parasitic capacitances.