公开(公告)号：US09461534B2

公开(公告)日：2016-10-04

申请号：US14664962

申请日：2015-03-23

Applicant: STMicroelectronics S.r.l.

Inventor： Roberto Larosa ,  Giulio Zoppi ,  Natale Aiello

IPC: H02M1/36 ,  H02M3/335 ,  H02J9/00 ,  H02M1/00

CPC classification number: H02M1/36 ,  H02J9/005 ,  H02M3/33523 ,  H02M2001/0006 ,  H02M2001/0032 ,  Y02B70/16

Abstract: A power supply includes a power supply circuit and a power-on circuit controlling transitioning of the power supply circuit to a turned-on state. The power-on circuit includes a code driver, a controller coupled to the power supply circuit and code driver, and a transducer to detect a wireless control signal and generate an enable signal based thereupon. A transistor has a first conduction terminal coupled to the code driver, a second conduction terminal coupled to the controller, and a control terminal coupled to the transducer to receive the enable signal so the transistor switches based thereupon. The code driver detects a code embedded in the wireless control signal based upon switching of the transistor, and generates a power on signal for the controller based upon the code. The controller causes the power supply circuit to transition from the turned-off state to the turned-on state based upon the power on signal.

Abstract translation: 电源包括电源电路和控制电源电路转换为导通状态的通电电路。 上电电路包括代码驱动器，耦合到电源电路和代码驱动器的控制器，以及用于检测无线控制信号并基于此产生使能信号的换能器。 晶体管具有耦合到代码驱动器的第一导电端子，耦合到控制器的第二导电端子，以及耦合到换能器的控制端子，以接收使能信号，从而晶体管基于此进行开关。 代码驱动器基于晶体管的切换来检测嵌入在无线控制信号中的代码，并且基于代码生成用于控制器的通电信号。 控制器基于电源接通信号使电源电路从截止状态转换到导通状态。