崇貿反擊，在美控告Power Integrations侵權

時間

原告

被告

地點

系爭專利

2008年10月14日

Fairchild Semiconductor
System General

Power Integrations

Delaware

US7,259,972
US7,352,595
US7,061,780

2008年5月23日

Power Integrations

Fairchild Semiconductor
System General

Delaware

？

2007年4月2日

Fairchild Semiconductor& Intersil

Power Integrations

？

US5,264,719

2005年7月8日

（2006年8月29日判決）

Power Integrations

Fairchild Semiconductor

ITC

[註1]

US6,212,079
US6,366,481
US6,538,908

註1：claims 1, 2, 3, 6, 9, and 17-19 of US6,212,079; claims 1, 2, 3, 5, 6, 24, 28, and 29 of US6,351,398; claims 8 and 12 of US6,366,481; claims 1, 4, 9-11, 13, 17, 19, 20, 22, 23, 26, 27, 30, 31, and 34 of US6,538,908.
Source: 科技政策研究與資訊中心—科技產業資訊室整理，2008/10。

專利號

發明人

第一獨立項

US7,259,972

Yang, Ta-yung

A power converter comprising:
a switch, responsive to a switching signal, to control electrical power in the power converter; and
a controller to generate the switching signal and to control the switching signal in response to a first feedback signal associated with a voltage control loop and a second feedback signal associated with a current control loop;
wherein the controller includes a pattern generator to generate a digital pattern and the controller uses the digital pattern for use in generating the switching signal as a frequency-hopping switching signal to the switch.

US7,352,595

Yang, a-yung;
Li, huh-Ching; Tsao, Feng Cheng;

A primary-side controlled switching regulator, comprising:
a transformer, for transferring the energy from a primary-side to a secondary side of the transformer;
a switching device, for switching the transformer;
a control circuit, coupled to the transformer for generating a switching signal to switch the switching device and to regulate the output of the switching regulator;
wherein the control circuit including:
a first circuit, coupled to the transformer for generating a first signal and a timing signal by measuring a reflected signal of the transformer, and wherein the timing signal represents a discharge time of the transformer;
a second circuit and a third circuit producing a second signal by integrating a current signal with the timing signal, and wherein the current signal represents a primary-side switching current of the transformer;
a first error amplifier, having a first reference signal for generating a first feedback signal in response to the first signal; and wherein the first reference signal is increased in response to the increase of the second signal;
a second error amplifier, having a second reference signal for generating a second feedback signal in response to the second signal; and
a switching control circuit, generating the switching signal in response to the first feedback signal and the second feedback signal.

US7,061,780

Yang, a-yung; Hung, Guo-Kiang; Lin, Jenn-yu G.;
Tsao, Feng Cheng;
Wei, Chiu Shao;

A switching control circuit for a primary-side-controlled power converter, comprising:
a switch for switching a transformer; wherein said transformer is coupled to an input voltage of the power converter;
a sense device, which is coupled to said transformer for sensing current or/and voltage of said transformer;
a switching signal, coupled to said switch for regulating an output voltage and a maximum output current of the power converter; and
a controller, coupled to said transformer to generate a first feedback signal and a discharge-time signal by multi-sampling a voltage signal and a discharge time of said transformer during an off-time of said switching signal, said controller further coupled to said sense device to generate a second feedback signal in response to said discharge-time signal and a current signal of said transformer, wherein said controller generates said switching signal in response to said first feedback signal, said controller controlling a switching frequency of said switching signal in response to said second feedback signal.

Source: 科技政策研究與資訊中心—科技產業資訊室整理，2008/10。