Invention Grant
US09563242B2 Pulse width modulation based real-time clock system and associated method
有权
基于脉宽调制的实时时钟系统及相关方法
- Patent Title: Pulse width modulation based real-time clock system and associated method
- Patent Title (中): 基于脉宽调制的实时时钟系统及相关方法
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Application No.: US14599551Application Date: 2015-01-19
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Publication No.: US09563242B2Publication Date: 2017-02-07
- Inventor: Kuan-Hung Chen , Keng-Jan Hsiao , Hui-Chun Liu
- Applicant: MEDIATEK INC.
- Applicant Address: TW Hsin-Chu
- Assignee: MEDIATEK INC.
- Current Assignee: MEDIATEK INC.
- Current Assignee Address: TW Hsin-Chu
- Agent Winston Hsu; Scott Margo
- Main IPC: G06F1/00
- IPC: G06F1/00 ; G06F1/26 ; G05F1/56 ; G06F1/32 ; G05F1/46 ; H02M3/156 ; H02M1/00
Abstract:
A pulse width modulation (PWM) based Real-time clock (RTC) system includes a voltage regulator circuit, a capacitor, an RTC circuit and an on-off logic. The voltage regulator circuit is arranged to generate a regulated voltage to a connection node when enabled; the capacitor is coupled to the connection node; the RTC circuit is coupled to the connection node; and the on-off logic is coupled to the voltage regulator circuit and arranged to alternately enable and disable the voltage regulator circuit.
Public/Granted literature
- US20160062427A1 PULSE WIDTH MODULATION BASED REAL-TIME CLOCK SYSTEM AND ASSOCIATED METHOD Public/Granted day:2016-03-03
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