Non-contact power transmitting device having simplified self-osc

Details Non-contact power transmitting device having simplified self-osc Non-contact power transmitting device having simplified self-osc

1998-11-27

2000-03-21

Riley, Shawn

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 21, H02M 3335

Patent

active

06040986&

ABSTRACT:
A power supplying section has a signal transmitting secondary coil which is not inductively coupled to a power transmitting primary coil, and actuates as a feedback coil of a switching element. A load section has a power transmitting secondary coil arranged so as to be confronted with the power transmitting primary coil when the load section is attached to the power supplying section, and also has a signal transmitting primary coil so as to be confronted with the signal transmitting secondary coil when the load section is attached to the power supplying section. When the load section is not attached to the power supplying section, the voltage is not induced in the signal transmitting secondary coil as the feedback coil, and the switching of the switching element is intermittently carried out.

REFERENCES:
patent: 5225972 (1993-07-01), Sakamoto
patent: 5488552 (1996-01-01), Sakamoto et al.
"A MAGNETIC COUPLED CHARGER WITH NO-LOAD PROTECTION" Sakamoto et al., Institute of Electrical Engineers of Japan; 12/12/97. (full translation).

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