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1. 发明授权

US07864550B2 Power adapter with voltage-stabilized compensation 有权
标题翻译：具有稳压补偿功能的电源适配器
公开(公告)号：US07864550B2
公开(公告)日：2011-01-04
申请号：US12265535
申请日：2008-11-05
申请人： Jian-Hua Duan , Rui-Xia Fei , Shao-Hua Fang , Qing-Hua Su
发明人： Jian-Hua Duan , Rui-Xia Fei , Shao-Hua Fang , Qing-Hua Su
IPC分类号： H02M3/335
CPC分类号： H02M3/33507
摘要： A power adapter with voltage-stabilized compensation includes a pulse frequency modulation circuit to generate a driving pulse which has a variable OFF time interval to control power transformed and output by a transformer. The power adapter also has an ancillary coil to induce a feedback signal on the secondary coil of the transformer. The pulse frequency modulation circuit includes a time interval modulation unit to receive the feedback signal and a feedback compensation unit. The time interval modulation unit sets a level voltage compared with the feedback signal to generate a sample signal to modulate the OFF time interval. The feedback compensation unit provides a compensation signal to the time interval modulation unit to change the size of the feedback signal or sample signal thereby to compensate the voltage output from the secondary side.
摘要翻译：具有电压稳定补偿的电源适配器包括脉冲频率调制电路，用于产生具有可变的关闭时间间隔的驱动脉冲，以控制由变压器变换和输出的功率。电源适配器还具有辅助线圈以在变压器的次级线圈上感应反馈信号。脉冲频率调制电路包括接收反馈信号的时间间隔调制单元和反馈补偿单元。时间间隔调制单元设置与反馈信号相比的电平电压以产生采样信号以调制关断时间间隔。反馈补偿单元向时间间隔调制单元提供补偿信号，以改变反馈信号或采样信号的大小，从而补偿从次级侧输出的电压。

2. 发明申请

US20100110735A1 POWER ADAPTER WITH VOLTAGE-STABILIZED COMPENSATION 有权
标题翻译：具有电压稳定补偿的电源适配器
公开(公告)号：US20100110735A1
公开(公告)日：2010-05-06
申请号：US12265535
申请日：2008-11-05
申请人： Jian-Hua Duan , Rui-Xia Fei , Shao-Hua Fang , Qing-Hua Su
发明人： Jian-Hua Duan , Rui-Xia Fei , Shao-Hua Fang , Qing-Hua Su
IPC分类号： H02M3/337
CPC分类号： H02M3/33507
摘要： A power adapter with voltage-stabilized compensation includes a pulse frequency modulation circuit to generate a driving pulse which has a variable OFF time interval to control power transformed and output by a transformer. The power adapter also has an ancillary coil to induce a feedback signal on the secondary coil of the transformer. The pulse frequency modulation circuit includes a time interval modulation unit to receive the feedback signal and a feedback compensation unit. The time interval modulation unit sets a level voltage compared with the feedback signal to generate a sample signal to modulate the OFF time interval. The feedback compensation unit provides a compensation signal to the time interval modulation unit to change the size of the feedback signal or sample signal thereby to compensate the voltage output from the secondary side.
摘要翻译：具有电压稳定补偿的电源适配器包括脉冲频率调制电路，用于产生具有可变的关闭时间间隔的驱动脉冲，以控制由变压器变换和输出的功率。电源适配器还具有辅助线圈以在变压器的次级线圈上感应反馈信号。脉冲频率调制电路包括接收反馈信号的时间间隔调制单元和反馈补偿单元。时间间隔调制单元设置与反馈信号相比的电平电压以产生采样信号以调制关断时间间隔。反馈补偿单元向时间间隔调制单元提供补偿信号，以改变反馈信号或采样信号的大小，从而补偿从次级侧输出的电压。

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