Electric power conversion systems – Current conversion – Using semiconductor-type converter
Patent
1989-12-04
1990-07-17
Wong, Peter S.
Electric power conversion systems
Current conversion
Using semiconductor-type converter
340448, 340643, 731464, 731465, 363 89, H02M 7217, B60C 2300
Patent
active
049425102
ABSTRACT:
An interface circuit serves to rectify excitation energy inductively coupled to a transistor acting in a diode configuration to charge a reservoir capacitor which may then serve as a power source. Switch means under the control of an external functional circuit block is arranged to bias the transistor into a reverse operating mode to itself act as a switch to discharge energy from the reservoir into the coupling. In this way pulses may be back coupled to be detected at the excitation source. The timing of the back coupled pulses may be information bearing.
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patent: 4683415 (1987-07-01), Zimmerman
patent: 4716514 (1987-12-01), Patel
patent: 4737761 (1988-04-01), Dosjoub et al.
patent: 4806843 (1989-02-01), Mertens et al.
Motorola Inc.
Wong Peter S.
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