公开(公告)号：WO2016001429A1

公开(公告)日：2016-01-07

申请号：PCT/EP2015/065253

申请日：2015-07-03

Applicant: POWER INTEGRATIONS SWITZERLAND GMBH

Inventor： THALHEIM, Jan ,  GARCIA, Olivier

IPC: H03K17/691 ,  H03K17/61 ,  H04L25/02 ,  H03K5/1252

CPC classification number: H03K17/16 ,  H01F27/2823 ,  H01F38/14 ,  H02M1/00 ,  H02M3/33576 ,  H02M2001/0012 ,  H03K5/1252 ,  H03K17/56 ,  H03K17/61 ,  H03K17/691 ,  H04L25/0266 ,  H04L25/028

Abstract: A switch controller includes a primary side including signal transmission circuitry to transmit signals representative of desired transitions of a switch. A signal transformer galvanically isolates the primary side from a secondary side but inductively couples signal transmission circuitry to signal reception circuitry. A switch is coupled to switch a low impedance onto a primary side winding of the signal transformer during pauses between transmissions of the signals representative of the desired transition of the switch. The secondary side includes signal reception circuitry, a drive signal generator to generate a drive signal in response to valid signals received by the signal reception circuitry, and a validation circuit that includes a first comparator, a timer, and a second comparator to compare a timed duration with a threshold duration, and to output to the drive signal generator signals indicative of the validity of particular signals received by the signal reception circuitry.

Abstract translation: 开关控制器包括初级侧，其包括用于传输表示开关的期望转换的信号的信号传输电路。 信号变压器将初级侧与次级侧电隔离，但是将信号传输电路感应耦合到信号接收电路。 耦合开关以在代表开关的期望转换的信号的传输之间的暂停期间将低阻抗切换到信号变压器的初级侧绕组。 次级侧包括信号接收电路，驱动信号发生器，用于响应由信号接收电路接收到的有效信号而产生驱动信号;以及验证电路，包括第一比较器，定时器和第二比较器，用于比较定时 具有阈值持续时间，并且向驱动信号发生器输出指示由信号接收电路接收的特定信号的有效性的信号。

公开(公告)号：WO2016005501A1

公开(公告)日：2016-01-14

申请号：PCT/EP2015/065712

申请日：2015-07-09

Applicant: POWER INTEGRATIONS SWITZERLAND GMBH

Inventor： THALHEIM, Jan

IPC: H03K17/082 ,  H03K17/16

CPC classification number: H03K17/56 ,  H02H3/08 ,  H03K17/0828 ,  H03K17/163 ,  H03K17/168

Abstract: A circuit (342, 346) for turning off a power semiconductor switch (304) includes a turn-off transistor (364) coupled to switch a signal for turning off the power semiconductor switch onto a control terminal of the power semiconductor switch and a feedback control loop for controlling a voltage (UGE) on the control terminal of the power semiconductor switch during turn-off. The feedback loop includes a feedback path to feedback a measurement of the voltage of the control terminal of the power semiconductor switch, a control terminal reference voltage generator to generate a time-dependent reference voltage (UREF), an error amplifier (368) to generate an error signal representative of a difference between the voltage of the control terminal and the time-dependent reference voltage, and a forward path to convey the error signal forward for controlling the switching of the signal for turning off the power semiconductor switch onto the control terminal of the power semiconductor switch by the turn-off transistor.

Abstract translation: 用于关闭功率半导体开关（304）的电路（342,346）包括关断晶体管（364），其耦合以切换用于将功率半导体开关截止到功率半导体开关的控制端子的信号，以及反馈 用于在关断期间控制功率半导体开关的控制端上的电压（UGE）的控制回路。 反馈回路包括用于反馈功率半导体开关的控制端子的电压的测量的反馈路径，控制端子参考电压发生器，以产生时间依赖参考电压（UREF），误差放大器（368）以产生 表示控制端子的电压与时间相关的参考电压之间的差异的误差信号，以及向前传送误差信号的前向通路，用于控制用于将功率半导体开关截止到控制端子的信号的切换 的功率半导体开关由关断晶体管组成。