Wireless transmitter

Details Wireless transmitter Wireless transmitter

1997-02-21

1999-04-27

Berhane, Adolf Deneke

Electric power conversion systems

Current conversion

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

363 22, H02M 3338

Patent

active

058985778

ABSTRACT:
An oscillator includes a converter, an oscillation transistor, a resistor, a capacitor and a primary coil of a transformer, and a rectifier includes a secondary coil of the transformer, resistors, capacitors, and a rectifying transistor. Control of the converter is carried out by the configuration of a capacitor, resistors and a transistor. A ripple filter includes a choke coil and ripple capacitors, and a converter activation part comprises a switch interlocked with a power supply switch and an activation diode. A ripple capacitor is also provided on the primary side of the converter. The battery is directly coupled to the primary side of the transformer.

REFERENCES:
patent: 3671842 (1972-06-01), McKeown
patent: 4087850 (1978-05-01), Koizumi
patent: 4092709 (1978-05-01), Voigt et al.
patent: 4121282 (1978-10-01), Ohsawa
patent: 4712170 (1987-12-01), Grace
patent: 5161241 (1992-11-01), Kanai
patent: 5428521 (1995-06-01), Kigawa et al.
patent: 5436550 (1995-07-01), Arakawa
patent: 5448466 (1995-09-01), Erckert
patent: 5638262 (1997-06-01), Brown

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