The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 2014
Filed:
Oct. 28, 2011
Meng-jen Tsai, Hsinchu, TW;
Ho-tzu Chueh, Taipei County, TW;
Cheng-chi Hsueh, Taipei County, TW;
Chien-yuan Lin, Taipei County, TW;
Meng-Jen Tsai, Hsinchu, TW;
Ho-Tzu Chueh, Taipei County, TW;
Cheng-Chi Hsueh, Taipei County, TW;
Chien-Yuan Lin, Taipei County, TW;
System General Corp., Taipei Hsien, TW;
Abstract
The power supply according to the present invention comprises a transformer, a power switch, a signal generating circuit, an on-time detection circuit, and a delay circuit. The transformer receives an input voltage and generates an output voltage. The power switch switches the transformer for regulating the output voltage. The signal generating circuit generates a switching signal for controlling switching of the power switch. The on-time detection circuit detects an on-time of the power switch and generates a short-circuit signal. The delay circuit counts to a first delay time or to a second delay time in response to a feedback signal of the power supply and the short-circuit signal to generate a turn off signal for controlling the signal generating circuit to latch the switching signal.