发明授权
US08421429B2 Control circuit and method for a power converter controlling adaptive voltage position
失效
用于控制自适应电压位置的功率转换器的控制电路和方法
- 专利标题: Control circuit and method for a power converter controlling adaptive voltage position
- 专利标题(中): 用于控制自适应电压位置的功率转换器的控制电路和方法
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申请号: US12701465申请日: 2010-02-05
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公开(公告)号: US08421429B2公开(公告)日: 2013-04-16
- 发明人: Yu Cheng Lin , Dan Chen , Wei-Hsu Chang
- 申请人: Yu Cheng Lin , Dan Chen , Wei-Hsu Chang
- 申请人地址: TW ChuPei
- 专利权人: Richlek Technology Corp.
- 当前专利权人: Richlek Technology Corp.
- 当前专利权人地址: TW ChuPei
- 优先权: TW98134525A 20091012
- 主分类号: G05F1/00
- IPC分类号: G05F1/00
摘要:
A control circuit and method for controlling a power converter comprises an adder, a digital compensator, and a pulse width modulation circuit. The adder acquires an output voltage difference between the output voltage and the reference output voltage. The digital compensator, which has a Z-domain transfer function, references the output voltage difference to generate a pulse width control signal with the least significant bits of the denominator coefficient in the Z-domain transfer function being regulated to achieve the load line function of the power converter. Further, the pulse modulation circuit is controlled by the pulse width control signal to generate the pulse width modulation signal to control ON/OFF of the power converter.