Half-wave rectifier circuit

Details Half-wave rectifier circuit Half-wave rectifier circuit

1994-10-31

1996-11-26

Wong, Peter S.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363127, H02M 112

Patent

active

055792146

ABSTRACT:
In a half-wave rectifier circuit for obtaining an DC voltage output depending on the level of an input signal through half-wave rectification of the input signal, an input voltage from which a DC component is removed by a capacitor is input to a switch circuit. This input voltage includes an offset voltage which is generated by use of the capacitor. The switch circuit outputs a half-wave rectified voltage to a smoothing circuit by switching the input voltage ON and OFF depending on the polarity of the input signal. Under the condition that an input voltage is controlled to OFF state, the switch circuit shows a high impedance viewed from the input side of the smoothing circuit. Therefore, an output voltage of the smoothing circuit is maintained when the switch circuit is in the OFF state. Thereby, the offset voltage generated by the capacitor is eliminated from the output voltage from the smoothing circuit.

REFERENCES:
patent: 4855890 (1989-08-01), Kammiller
patent: 4872127 (1989-10-01), Nolan
patent: 4992921 (1991-02-01), Albach et al.
patent: 5121316 (1992-06-01), Rensink et al.

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