公开(公告)号：US20160218625A1

公开(公告)日：2016-07-28

申请号：US14920078

申请日：2015-10-22

Applicant: RICHTEK TECHNOLOGY CORPORATION

Inventor： ISAAC Y. CHEN

IPC: H02M3/335

CPC classification number: H02M3/33523 ,  H02M3/33515 ,  H02M2001/0025

Abstract: A power converter determines a feedback signal according to a voltage signal related to an output voltage of the power converter and a reference voltage, thereby regulating the output voltage. A control circuit and method for programming the output voltage of the power converter utilize an offset current generator to inject a current or sink a current for changing the voltage signal or the reference signal, thereby adjusting the output voltage. As a result, it gets rid of complicated circuitry but provides more steps adjustment, which reduces related costs.

Abstract translation: 功率转换器根据与功率转换器的输出电压相关的电压信号和参考电压来确定反馈信号，从而调节输出电压。 用于对功率转换器的输出电压进行编程的控制电路和方法利用偏移电流发生器来注入电流或吸收用于改变电压信号或参考信号的电流，从而调整输出电压。 因此，它摆脱了复杂的电路，但提供了更多的步骤调整，这降低了相关成本。

公开(公告)号：US20180367044A1

公开(公告)日：2018-12-20

申请号：US16012288

申请日：2018-06-19

Applicant: RICHTEK TECHNOLOGY CORPORATION

Inventor： ISAAC Y. CHEN

IPC: H02M3/335 ,  H02M1/00

CPC classification number: H02M3/33523 ,  H02M3/33515 ,  H02M2001/0025

Abstract: A power converter determines a feedback signal according to a voltage signal related to an output voltage of the power converter and a reference voltage, thereby regulating the output voltage. A control circuit and method for programming the output voltage of the power converter utilize an offset current generator to inject a current or sink a current for changing the voltage signal or the reference signal, thereby adjusting the output voltage. As a result, it gets rid of complicated circuitry but provides more steps adjustment, which reduces related costs.

公开(公告)号：US20180301994A1

公开(公告)日：2018-10-18

申请号：US16013190

申请日：2018-06-20

Applicant: RICHTEK TECHNOLOGY CORPORATION

Inventor： ISAAC Y. CHEN

IPC: H02M3/335 ,  H02M1/00

CPC classification number: H02M3/33523 ,  H02M3/33515 ,  H02M2001/0025

Abstract: A power converter determines a feedback signal according to a voltage signal related to an output voltage of the power converter and a reference voltage, thereby regulating the output voltage. A control circuit and method for programming the output voltage of the power converter utilize an offset current generator to inject a current or sink a current for changing the voltage signal or the reference signal, thereby adjusting the output voltage. As a result, it gets rid of complicated circuitry but provides more steps adjustment, which reduces related costs.

公开(公告)号：US20160212821A1

公开(公告)日：2016-07-21

申请号：US14920240

申请日：2015-10-22

Applicant: RICHTEK TECHNOLOGY CORPORATION

Inventor： JIUN-HUNG PAN ,  TONG-CHENG JAO ,  YI-WEI LEE ,  ISAAC Y. CHEN

IPC: H05B33/08

CPC classification number: H05B33/083 ,  Y02B20/341 ,  Y02B20/345

Abstract: A linear LED driver comprises a transistor having an input terminal coupled to a LED. When the transistor is turned on, the LED is lighted. The linear LED driver further includes a protection circuit for judging whether an instant high voltage variation occurs or not according to at least one of the voltages of a control terminal and an output terminal of the transistor so as to achieve a protection function.

Abstract translation: 线性LED驱动器包括具有耦合到LED的输入端的晶体管。 当晶体管导通时，LED点亮。 线性LED驱动器还包括保护电路，用于根据晶体管的控制端子和输出端子的电压中的至少一个来判断是否发生瞬时高电压变化，以实现保护功能。

公开(公告)号：US20180301993A1

公开(公告)日：2018-10-18

申请号：US16012247

申请日：2018-06-19

Applicant: RICHTEK TECHNOLOGY CORPORATION

Inventor： ISAAC Y. CHEN

IPC: H02M3/335 ,  H02M1/00

CPC classification number: H02M3/33523 ,  H02M3/33515 ,  H02M2001/0025

Abstract: A power converter determines a feedback signal according to a voltage signal related to an output voltage of the power converter and a reference voltage, thereby regulating the output voltage. A control circuit and method for programming the output voltage of the power converter utilize an offset current generator to inject a current or sink a current for changing the voltage signal or the reference signal, thereby adjusting the output voltage. As a result, it gets rid of complicated circuitry but provides more steps adjustment, which reduces related costs.