发明授权
- 专利标题: Apparatus, circuit and method for automatic phase-shifting pulse width modulated signal generation
- 专利标题(中): 用于自动移相脉宽调制信号生成的装置,电路及方法
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申请号: US12712930申请日: 2010-02-25
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公开(公告)号: US08339174B2公开(公告)日: 2012-12-25
- 发明人: Zhiyu Yang , Dilip S , Tushar Dhayagude
- 申请人: Zhiyu Yang , Dilip S , Tushar Dhayagude
- 申请人地址: US CA San Jose
- 专利权人: Atmel Corporation
- 当前专利权人: Atmel Corporation
- 当前专利权人地址: US CA San Jose
- 代理机构: Fish & Richardson P.C.
- 主分类号: H03K3/00
- IPC分类号: H03K3/00
摘要:
Systems, circuits and methods for phase-shifting pulse width modulated signal generation are disclosed. In some embodiments, a phase-shifting pulse width modulation circuit is configured to output pulses based on an input pulse width modulated signal. The pulses are staggered relative to one another, and can be received by a light-emitting diode driver for driving a light-emitting diode string at one or more time periods. The phase-shifting pulse width modulation circuit can include a counter-based programmable delay subcircuit consisting of two counter-based programmable delay blocks.
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