发明名称 |
SYSTEMS AND METHODS FOR CURRENT CONTROL OF POWER CONVERSION SYSTEMS |
摘要 |
System and method for regulating an output current of a power conversion system. An example system controller for regulating an output current of a power conversion system includes a driving component, a demagnetization detector, a current-regulation component, and a signal processing component. The driving component is configured to output a drive signal to a switch in order to affect a primary current flowing through a primary winding of the power conversion system. The demagnetization detector is configured to receive a feedback signal associated with an output voltage of the power conversion system and generate a detection signal based on at least information associated with the feedback signal. The current-regulation component is configured to receive the drive signal, the detection signal and a current-sensing signal and output a current-regulation signal based on at least information associated with the drive signal, the detection signal, and the current sensing signal. |
申请公布号 |
US2017126137(A1) |
申请公布日期 |
2017.05.04 |
申请号 |
US201615352133 |
申请日期 |
2016.11.15 |
申请人 |
ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD. |
发明人 |
Zhang Yunchao;Fang Lieyi |
分类号 |
H02M3/335;H05B33/08;H02M1/08 |
主分类号 |
H02M3/335 |
代理机构 |
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代理人 |
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主权项 |
1. A system controller for regulating an output current of a power conversion system, the system controller comprising:
a driving component configured to output a drive signal to a switch in order to affect a primary current flowing through a primary winding of the power conversion system, the drive signal being associated with at least a switching period, the switching period including an on-time period and a demagnetization period; a demagnetization detector configured to receive a feedback signal associated with an output voltage of the power conversion system and generate a detection signal based on at least information associated with the feedback signal, the detection signal indicating the demagnetization period; a current-regulation component configured to receive the drive signal, the detection signal and a current-sensing signal and output a current-regulation signal based on at least information associated with the drive signal, the detection signal, and the current sensing signal, the current-sensing signal representing the primary current in magnitude; and a signal processing component configured to receive the current-regulation signal and output a processed signal to the driving component in order to generate the drive signal. |
地址 |
Shanghai CN |