4.11 Applying the DC Bias Current
4-52 ZM2376
current, is suitable. When the signal voltage at the DUT end is 1Vrms max, the number of series
between H and L should be approx 8 pieces. Keep the forward voltage not to conduct the diode by
the measure signal
The bias current should be increased/decreased little by little. If it is changed
rapidly, a high voltage may be generated, thereby causing an electric shock or
damaging the LCR meter.
To connect/disconnect the DUT, the bias voltage should be set to zero first. The
DUT should be connected firmly by tightening with screws or soldering. Once the
inductor is disconnected while the bias current is running, a high voltage may be
generated, thereby causing an electric shock or damaging the LCR meter.
If the temperature of DUT can be increased during measurement, do not touch it
until the temperature excessively drops after measurement. If high voltage or
current is applied on the DUT for a long time, high temperature may cause a
burn.
The bias current should be increased/decreased little by little. If it is changed
rapidly, a high voltage may be generated, thereby causing an electric shock or
damaging the LCR meter.
To connect/disconnect the DUT, the bias voltage should be set to zero first. The
DUT should be connected firmly by tightening with screws or soldering. Once the
inductor is disconnected while the bias current is running, a high voltage may be
generated, thereby causing an electric shock or damaging the LCR meter.
If the temperature of DUT can be increased during measurement, do not touch it
until the temperature excessively drops after measurement. If high voltage or
current is applied on the DUT for a long time, high temperature may cause
DUT/ circumference can be burn out.
Usually, a constant voltage/current power supply (CVCC) is used for an external power. Set the
output voltage to minimum necessary value so that it is safe even if the output terminal is released.
When the power supply operates unstably, you can adjust the response characteristics of the power
supply or insert a register in series to stabilize it.
When an external power is connected, measured values may vary by noise mixing like ripple current.
Also, the capacitance to grounding may increase (the impedance to grounding decreases), and the
measurement error increases or the operation is unstable to disable the measurement. In these
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