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3.1.2 For An AC Source Amplifier / Analog Control
This source type is one that can function as power amplifier from a 5V RMS input.
Using this type of source gives the AT3600/AT5600 full control of the external source.
The benefits are that:
The AT3600/AT5600 will trim the output voltage during testing, so that the voltage across the test piece will
always be at the programmed level, even if the gain of the source drifts or the impedances of the test parts
are different.
The AT3600/AT5600 will ramp the test voltage up and down in a controlled manner, minimizing settling time
and optimising test speed.
The Power can be over the 25 W limit of the Output Transformer method.
Open the PC Editor and from the ‘Setup’ menu choose ‘External Sources’.
Click on ‘New’ to configure a new external source.
1 Enter your own choice of “friendly name” for your AC source in “Source Type”
2 From the ‘Source Type’ drop-down menu, select the appropriate source type = “Amplifier / Analog Control”.
3 Set the voltage gain of your amplifier.
This defines the ratio of the input voltage from the ESD drive (0-5V RMS) to the output of the amplifier.
In the above example the gain is set to 84, i.e., that 1 V RMS must be supplied to the amplifier analog input,
to generate 84 V RMS on the output
Note ; Once this is set up, you will program the tests (VOCX , MAGX , WATX STRX) in the normal way, and
enter your requested voltage that you require on the UUT. The AT will then apply and trim the input voltage
to the amplifier, based on your programmed gain, to get your required test signal for your UUT
Click ‘Save.’ Your source now appears in the window on the left.
