ITech IT6600C Series User Manual page 46

DC Mode
When the DC is turned on, it indicates that the instrument serves as a DC power
supply. Under this mode, the instrument will generate DC output. The default set
of IT6600 series power supply is DC Mode.
Set the Output Voltage/Current/Power

In CV priority (default) mode, the main interface displays Vs (Setting value
of voltage), I+ (Upper limit of current), I- (Lower limit of current), P+ (Upper
limit of power), and P- (Lower limit of power).

In CC priority mode, the main interface displays Is (Setting value of current),
Vh (Upper limit of voltage), Vl (Lower limit of voltage), P+ (Upper limit of
power), and P- (Lower limit of power).
Press the up/down key to move the cursor to the parameters setting and press
the [Enter] key to confirm. Press numeric keys or rotate the knob to adjust the
value in the current setting area. This value takes effect when you press [Enter].
4.2.2 Set the Output Priority Mode
CV Priority
In CV priority mode, the output is controlled by a constant-voltage feedback loop,
which maintains the output voltage at its programmed setting as long as the load
current remains within the positive or negative current limit settings. CV priority
mode is best suited for use with resistive or high impedance loads, and loads
that are sensitive to voltage overshoots. Do not use CV priority mode with low-
impedance sources such as batteries, power supplies, or large charged
capacitors.
In CV priority mode, the output voltage should be programmed to the desired
value. A positive and negative current limit value should also be set. The current
limit should always be set to a value that is greater than the actual input current
requirement of the external load. The following figure shows the CV priority
operating locus of the output. The area in the white quadrants shows the output
as a source (sourcing power). The area in the shaded quadrants shows the
output as a load (sinking power).
Copyright ©ITECH Electronic Co., Ltd.
Power Supply Function
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