Invention Grant
- Patent Title: Power-on reset circuit and electronic device using the same
- Patent Title (中): 上电复位电路和使用该电路的电子设备
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Application No.: US12427728Application Date: 2009-04-21
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Publication No.: US07924070B2Publication Date: 2011-04-12
- Inventor: Guang-Ze Li , Chun-Te Wu
- Applicant: Guang-Ze Li , Chun-Te Wu
- Applicant Address: CN Shenzhen, Guangdong Province TW Tu-Cheng, New Taipei
- Assignee: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd.,Hon Hai Precision Industry Co., Ltd.
- Current Assignee: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd.,Hon Hai Precision Industry Co., Ltd.
- Current Assignee Address: CN Shenzhen, Guangdong Province TW Tu-Cheng, New Taipei
- Agent Raymond J. Chew
- Priority: CN200820300643U 20080428; CN200810302806 20080718
- Main IPC: H03L7/00
- IPC: H03L7/00

Abstract:
A power-on reset circuit, connected to an external direct current (DC) power source, to receive DC power signals and generate a reset signal, includes a delay circuit, a combination circuit and a shaping circuit. The delay circuit comprises a plurality of delay units, to delay the received DC power signals and output a plurality of delayed DC power signals. The combination circuit is connected to the delay circuit, to combine the delayed DC power signals into a combination signal, and output the combination signal. The shaping circuit is connected to and turns the combination circuit on and off according to the combination signal and outputs the reset signal.
Public/Granted literature
- US20090267659A1 POWER-ON RESET CIRCUIT AND ELECTRONIC DEVICE USING THE SAME Public/Granted day:2009-10-29
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