US 7,562,235 B2
Dual power switch system and related control method thereof
Li-Min Tseng, Taipei (Taiwan); and Jen-Hong Larn, Taipei (Taiwan)
Assigned to BenQ Corporation, Taipei (Taiwan)
Filed on Dec. 27, 2005, as Appl. No. 11/306,409.
Claims priority of application No. 93141797 A (TW), filed on Dec. 31, 2004.
Prior Publication US 2006/0208576 A1, Sep. 21, 2006
Int. Cl. G06F 1/00 (2006.01); G06F 1/26 (2006.01); G06F 1/32 (2006.01)
U.S. Cl. 713—300  [713/320; 396/301; 396/303; 396/349] 15 Claims
OG exemplary drawing
 
1. A dual power switch system, comprising:
a power supply module for supplying power to the dual power switch system;
a first power switch circuit, electrically connected to the power supply module, for generating a first control voltage to temporarily trigger the power supply module to supply the power, and for generating a third control voltage when generating the first control voltage;
a second power switch circuit, electrically connected to the power supply module, for generating a second control voltage through magnetic induction to temporarily trigger the power supply module to supply the power; and
a control circuit receiving power from the power supply module, electrically connected to the first and the second power switch circuits, for generating a fourth control voltage according to the second and the third control voltages to control the power supply module to selectively supply the power.