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Basic Operations

3.5 Switching Output range

IT7600 series AC source will allow switchover between High range Low range

and Auto range.

User can choose the range according to actual test requirements, when High

range is selected, voltage setting value is under high level. When Low range is

selected, voltage setting value is under low level (refer to 9.1 Main technical

parameters for more details).If the auto range is selected, the instrument will

automatically switch to high level or low level, thus sparing complicated

operations such as manual setting.

NOTE

There is a temporary OFF to the AC source during the switchover of range.

3.6 Waveform Selection

The user can set the output waveform in the main interface of IT7600 series

power supply. Five output waveforms below are available:

 Sine

 Square

 Sawtooth

 Triangle

 THDWave

When THDWave is selected, the user should configure the distortion waveform.

(refer to 8.4THD Wave for more details)

3.7 Sweep function

The Sweep function is used to test efficiency of switching power supply and

capture the voltage and frequency at the maximum power point. The voltage

and frequency of power may be altered in the form of step ladder by setting the

initial voltage, final voltage, step voltage, initial frequency, final frequency, step

frequency and one-step time. As the test closes, voltage and frequency at the

maximum power point may be displayed. Sweep function is not applicable

under DC mode and ACDC mode.

Operating steps

1. Press [Shift]+[List] (Step) on the front panel to enter the sweep interface,

as shown in the figure below.

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ITech IT7622 User Manual

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