Electric power conversion systems – Current conversion – Including automatic or integral protection means
Reexamination Certificate
2007-04-03
2007-04-03
Patel, Rajnikant B. (Department: 2838)
Electric power conversion systems
Current conversion
Including automatic or integral protection means
C363S095000, C363S021070
Reexamination Certificate
active
10738577
ABSTRACT:
An error detection circuit includes: a Zener diode having a cathode connected through a resistor to a second DC output with a higher voltage than that of a first DC output; a voltage divider circuit; and a PNP transistor having an emitter connected to the first DC output, and a base supplied with an output voltage of the voltage divider circuit. A Zener voltage of the Zener diode and a voltage dividing ratio of the voltage divider circuit are set so that the output voltage of the voltage divider circuit is equal to a value obtained by subtracting the base-emitter voltage of the PNP transistor Q1from the voltage of the first DC output, and that temperature characteristic of the output voltage of the voltage divider circuit is set at a value canceling temperature characteristic of the PNP transistor.
REFERENCES:
patent: 4745299 (1988-05-01), Eng et al.
patent: 5920466 (1999-07-01), Hirahara
patent: 6314004 (2001-11-01), Higuchi
patent: 6525948 (2003-02-01), Hsu
patent: 6577511 (2003-06-01), Yamaguchi et al.
patent: 2001-34350 (2001-02-01), None
Funai Electric Co. Ltd.
Osha & Liang LLP
Patel Rajnikant B.
LandOfFree
Video cassette recorder and RCC type switching power supply does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Video cassette recorder and RCC type switching power supply, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video cassette recorder and RCC type switching power supply will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3773891