Induction circuit for contactless power supply apparatus

Details Induction circuit for contactless power supply apparatus Induction circuit for contactless power supply apparatus

2006-10-10

2006-10-10

Van, Quang (Department: 3742)

Electric heating

Inductive heating

With power supply system

C219S663000

Reexamination Certificate

active

07119311

ABSTRACT:
An induction circuit for a contactless power supply apparatus including an induction coil for inducing a current in response to a high frequency current flowing through a primary induction circuit and supplying the current to a load. The induction circuit includes a resonant capacitor, a full-wave rectifier, two short-circuited units, a current-limiting coil, and a smoothing capacitor. The current is rectified by the full-wave rectifier via the current-limiting coil to supply the load. The output voltage level and the voltage levels of the short-circuited units are monitored to control the resonance of resonant circuit which is formed by induction coil and resonant capacitor to stop by turning on any of the short-circuited units. Hence, an impulse current is prevented from entering the load and damaging the induction circuit.

REFERENCES:
patent: 09214394 (1997-08-01), None
patent: 11252912 (1999-09-01), None

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