Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific voltage responsive fault sensor
Reexamination Certificate
2011-08-09
2011-08-09
Patel, Rajnikant (Department: 2838)
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific voltage responsive fault sensor
C323S282000, C331S056000
Reexamination Certificate
active
07995318
ABSTRACT:
Power at a selected frequency in the high frequency region of the spectrum is supplied by a power converter having a wide range of input voltages. The power converter uses a source oscillator and a NOR gate. The source oscillator generates a rectangular wave at the selected frequency and supplies that signal to one of the NOR gate inputs. The rectangular wave is differentiated and the differentiated signal is supplied to the second NOR input along with a feedback signal from an amplifier controlled by the NOR gate's output.
REFERENCES:
patent: 4144751 (1979-03-01), Yokoyama
patent: 4462262 (1984-07-01), Kahnke
patent: 5125087 (1992-06-01), Randell
patent: 5745352 (1998-04-01), Sandri et al.
patent: 6531854 (2003-03-01), Hwang
patent: 7221216 (2007-05-01), Nguyen
patent: 7808224 (2010-10-01), Honda
Kiewit David
Patel Rajnikant
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