Electric power conversion systems – Current conversion – Including automatic or integral protection means
Reexamination Certificate
2011-06-21
2011-06-21
Behm, Harry (Department: 2838)
Electric power conversion systems
Current conversion
Including automatic or integral protection means
C323S907000, C361S093800
Reexamination Certificate
active
07965527
ABSTRACT:
A device for protecting an electronic converter, e.g. for halogen lamps, includes a comparator having an output as well as non-inverting and inverting inputs for receiving a first input signal indicative of the load applied to the converter and a second input signal indicative of the temperature of the converter. The comparator is in a non-inverting Schmitt-trigger configuration having an input-output characteristic with hysteresis. Consequently, the output is switched from a first value to a second value to switch off the electronic converter as the first input signal exceeds a first threshold value. The output is switched back from the second value to the first value to restart the electronic converter when the first input signal falls below a second threshold value. The second threshold value is lower than the first threshold value, and both threshold values are a function of the signal indicative of the temperature of the converter.
REFERENCES:
patent: 5008771 (1991-04-01), Palara
patent: 6222322 (2001-04-01), Stack
patent: 6856098 (2005-02-01), Piaskowski
patent: 7149098 (2006-12-01), Chen
patent: 2004/0070910 (2004-04-01), Gergintschew
patent: 2007/0080905 (2007-04-01), Takahara
Grabel, Microelectronics (2nded.), McGraw-Hill Int'l Eds., XP002388164, pp. 679-682 (1987).
Prieto et al., “Closing a Second Feedback Loop in DC/DC Converters Based on Piezoelectric Transformers,” 2004 Power Elecs. Spec. Conf., IEEE, pp. 4682-4688 (Jun. 20, 2004).
Behm Harry
Grubb Matthew
OSRAM Gesellschaft mit beschraenkter Haftung
LandOfFree
Temperature protection device for electronic converters and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Temperature protection device for electronic converters and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature protection device for electronic converters and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2650600