USER MANUAL
●
Double the output voltage by driving 2 high voltage amplifiers in bridge
mode
●
Switchable 50
Ω
/100k
Ω
input: buffer low-current signal sources to drive
high-speed 50
Ω
amplifier inputs
●
High speed: DC – 20MHz @ -3dB full power bandwidth
●
±10V maximum output voltage
About this manual
This user manual is an integral part of the
Falco Systems WMA-IB-HS phase inverter
- buffer product. Please read it carefully
and pay attention to the recommendations
and instructions for safe use.
Operation of the phase inverter
The WMA-IB-HS is a low noise, high
speed DC - 20MHz phase inverter - buffer
designed to drive one or two high voltage
amplifiers. It can be used:
To drive two amplifiers in bridge mode
by using both the buffered output and the
inverting output, or
As a high impedance buffer between a
signal source and the amplifier
The input of the WMA-IB-HS is switchable
to 100k
Ω
input impedance and to 50
Ω
:
The 50
Ω
setting is used with 50
Ω
sources such as function- or arbitrary
waveform generators, to ensure waveform
integrity
even
at
high
operating
frequencies.
The 100k
Ω
setting is used to buffer
current limited signal sources such as
typical computer controlled DAQ (data
acquisition) cards.
Internal gain switching circuitry makes
sure that the output signal amplitude does
not change with the setting of the switch
when the input impedance switch is
toggled (when driven from a 50
Ω
source).
The outputs of the WMA-IB-HS can drive
both high impedance and 50
Ω
high
voltage amplifier inputs. The WMA-IB-HS
can also be used as a high quality stand-
alone phase inverter - buffer in a variety of
other applications.
The WMA-IB-HS ships with a customized
Mean Well GS25B28-P1J power supply.
The power supply connector, 315mAT
fuse and on-off switch are on the rear
panel of the WMA-IB-HS enclosure. A blue
led indicates that the WMA-IB-HS is on.
Falco Systems WMA-IB-HS 20MHz High Speed Phase Inverter -
Buffer
