发明名称 |
Digital Controlled Power Supply |
摘要 |
In a digital controlled power supply including a digital controller for generating a PWM signal which is used to turn on and off a switching element to obtain an output voltage for a load based on an input voltage, the digital controller includes an AD converter for receiving an analog output current from the power supply and converting the current into a digital value to produce a digital output current value, an arithmetic processing unit for conducting an arithmetic operation of a pulse width for each period of a sampling frequency of the AD converter or a frequency of carrier wave as a criterion to obtain the PWM signal, and a frequency controller for variably controlling the frequency of carrier wave and the sampling frequency on the basis of the digital output current value from the AD converter.
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申请公布号 |
US2009102446(A1) |
申请公布日期 |
2009.04.23 |
申请号 |
US20080252482 |
申请日期 |
2008.10.16 |
申请人 |
HITACHI COMPUTER PERIPHERALS, CO., LTD. |
发明人 |
TAKAHASHI FUMIKAZU;HAMAOGI MASAHIRO |
分类号 |
G05F1/00 |
主分类号 |
G05F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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