EX Series Operating Manual
Stability
Using remote sensing under certain combinations of load lead lengths and large load
capacitances may cause your application to form a filter, which becomes part of the
voltage feedback loop. The extra phase shift created by this filter can degrade the power
supply’s stability, resulting in poor transient response or loop instability. In severe cases,
it may cause oscillations
it may cause oscillations.
To minimize this possibility, refer to below method.
▌Keep the load leads and sense leads as short as possible.
▌Twist the load leads and sense leads together..
▌Connect sense leads safely to the DUT.
As the sense leads are part of the power supply’s programming feedback loop,
accidental open-connections of sense or load leads during remote sensing operation
accidental open-connections of sense or load leads during remote sensing operation
have various unwanted effects.
▌Reminder never connect the load leads to sense lead terminal.
Remote Voltage Sensing Connection
Remote voltage sensing requires connecting the load leads from output terminals to the load
Remote voltage sensing requires connecting the load leads from output terminals to the load
and connecting the sense leads from sense terminals to the load as shown below.
Observe polarity when connecting the sensing leads to the load.
Never connect the load leads to sense lead terminal. If you connect, the power supply can be
under unregulated state.
Note
Notice that the copper shorting wires should be removed from he output and sense terminals for
remote voltage sensing connections.
For local voltage sensing connections, the sense leads must be connected to the output terminals.
< Figure. 3-1 >
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