Title:
HIGH-FREQUENCY POWER SUPPLY CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2007/080697
Kind Code:
A1
Abstract:
[PROBLEMS] To accurately regulate output of a high-frequency power with a simple configuration.
[MEANS FOR SOLVING PROBLEMS] A high-frequency power supply circuit includes:
a basic drive square wave generation circuit unit (5) for generating a basic drive
square wave having an output frequency; a differential signal generation circuit
unit (9) for generating a front edge differential signal of the basic drive square
wave; a vibrator circuit unit (15) having a square wave signal generator (10)
for outputting a square wave signal having a signal width within a period corresponding
to a half cycle of the output frequency upon input of a trigger signal from outside
and signal width control circuits (11, 12) varying/controlling the signal width
of the square wave signal according to the control signal; and a switching amplification
circuit unit (6) for amplifying the amplification source signal based on the
output signal from the vibrator circuit unit (15). The front edge differential
signal generated by the differential signal generation circuit unit (9) is made
to be a trigger signal in the vibrator circuit unit (15).
Inventors:
HONDA TADASHI (JP)
Application Number:
PCT/JP2006/322257
Publication Date:
July 19, 2007
Filing Date:
November 08, 2006
Export Citation:
Assignee:
ADVANCED DESIGN CORP (JP)
HONDA TADASHI (JP)
HONDA TADASHI (JP)
International Classes:
H05H1/46
Foreign References:
| JP2000256845A | 2000-09-19 | |||
| JPH08167500A | 1996-06-25 | |||
| JPH08255782A | 1996-10-01 | |||
| JP2003347092A | 2003-12-05 | |||
| JPS62178171A | 1987-08-05 | |||
| JPH06303769A | 1994-10-28 | |||
| JPH0715958A | 1995-01-17 | |||
| JPH06338476A | 1994-12-06 |
Attorney, Agent or Firm:
SHIGENOBU, Kazuo et al. (3-28 Kioi-ch, Chiyoda-ku Tokyo 94, JP)
Download PDF: