Pop noise suppression technique

Details Pop noise suppression technique Pop noise suppression technique

2011-04-26

2011-04-26

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

Reexamination Certificate

active

07932711

ABSTRACT:
A voltage supply circuit and a circuit device can reduce the noise in the output of the circuit when the power to the circuit is turned on and off and can shorten the time required to start or stop the operation of the circuit. When the supply of power to signal processing part10is started or stopped, reference voltage Vref supplied to signal processing part10is varied continuously to reduce the high-frequency noise in the output of signal processing part10. Also, when the setpoint value of the waveform of reference voltage Vref is generated by digital signal processing in voltage setting part30, the desired waveform can be generated without being limited by the values of the circuit elements or the circuit configuration. The output noise of signal processing part10can be reduced, and the time that reference time Vref varies can be shortened.

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