Operation and Application
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5.6 Waveform Selection
The user can set the output waveform in the config menu of IT7900 series power
supply. Eight output waveforms below are available, user can select the
waveform in Config->Waveform menu.
z Sine
z Square
z Sawtooth
z Triangle
z Trapezoid
z Clipped-sine
z THD wave
z User-defined
When Trapezoid, Clipped-sine, THD Wave and User-define are selected, the
user should configure the parameter of waveform.
5.7 Full 4-Quadrant Power Amplifier
The IT7900 series regenerative grid simulator can be used as a power amplifier
to complete power hardware in the loop (PHIL) applications for microgrids,
energy storage and new energy vehicles. The digital I/O or a standard suite of
analog signal can be input via an external analog interface (optional) and then
amplified without distortion to a real power waveshape with an external analog
response time of less than 200us.
The power amplification function can only be realized by selecting external
analog interface. Please refer to the Analogue function in 6.11 for the specific
use method.
5.8 Auto-range Function
IT7900 series power supply can achieve the combined output of multiple voltage
and current at a fixed power. Single power supply can meet different DUT tests
with high voltage low current or high current low voltage, at the same time,
because the output of voltage and current is controlled by the limit power, it will
show the switching of voltage and current auto ranging. To avoid Intermittent
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