Method of forming a switching device and structure therefor
    2.
    发明授权
    Method of forming a switching device and structure therefor 有权
    形成开关装置的方法及其结构

    公开(公告)号:US06633193B1

    公开(公告)日:2003-10-14

    申请号:US10117209

    申请日:2002-04-08

    CPC classification number: H03K17/0822 H03K4/502 H03K17/163

    Abstract: A switching device (20) is formed to generate a ramp voltage by using a capacitor (48) formed on the semiconductor die (90) with the switching device (20). The switching device (20) drives a high-power device to conduct load currents for a load. The ramp voltage is used to gradually increase the drive that is applied to the high-power device in order to gradually increase the current conducted by the high-power device.

    Abstract translation: 形成切换装置( 20 )以通过使用形成在半导体上的电容器( 48 )产生斜坡电压 使用开关设备( 20 )的( 90 )。 开关器件( 20 )驱动高功率器件以负载负载电流。 斜坡电压用于逐渐增加施加到大功率器件的驱动,以便逐渐增加由大功率器件传导的电流。

    Method of forming a voltage detection device and structure therefor
    3.
    发明授权
    Method of forming a voltage detection device and structure therefor 有权
    形成电压检测装置的方法及其结构

    公开(公告)号:US06605978B1

    公开(公告)日:2003-08-12

    申请号:US10254274

    申请日:2002-09-25

    CPC classification number: G01R19/0084

    Abstract: A voltage detection device (10, 30) utilizes grounded gate J-FET transistors (16,17,18) to detect desired input voltage values. The grounded gate J-FET transistors (16,17,18) function in different modes as the input voltage varies to facilitate detecting the desired input voltage values.

    Abstract translation: 电压检测装置(10,30)利用接地栅极J-FET晶体管(16,17,18)来检测期望的输入电压值。 当输入电压变化时,接地栅极J-FET晶体管(16,17,18)以不同的模式工作,以便于检测所需的输入电压值。

    METHOD OF FORMING AN OSCILLATOR CIRCUIT AND STRUCTURE THEREFOR
    4.
    发明申请
    METHOD OF FORMING AN OSCILLATOR CIRCUIT AND STRUCTURE THEREFOR 有权
    形成振荡器电路的方法及其结构

    公开(公告)号:US20090289733A1

    公开(公告)日:2009-11-26

    申请号:US12126122

    申请日:2008-05-23

    CPC classification number: H03K4/502 H02M3/1563

    Abstract: In one embodiment, an oscillator circuit is configured to oscillate at a base frequency. The oscillator is configured to receive a synchronization signal and restart a period of the oscillator signal responsively to the synchronization signal.

    Abstract translation: 在一个实施例中,振荡器电路被配置为以基本频率振荡。 振荡器被配置为接收同步信号并响应于同步信号重新启动振荡器信号的周期。

    Oscillator controller with first and second voltage reference
    5.
    发明授权
    Oscillator controller with first and second voltage reference 有权
    具有第一和第二参考电压的振荡器控制器

    公开(公告)号:US06271735B1

    公开(公告)日:2001-08-07

    申请号:US09455416

    申请日:1999-12-06

    CPC classification number: H03K4/06 H03K3/0231 H03L1/02

    Abstract: A controller oscillator provides a periodic output signal having first and second output level states. The oscillator is responsive to an applied saw tooth signal that varies between first and second voltages (Vlow,Vhigh). The oscillator is comprised of a comparator (82) the non-inverting input of which receives the saw tooth signal applied thereto to produce the periodic output signal at its output (86). A first voltage reference circuit (88, 90, and 92) generates the second voltage (Vhigh) that is applied to the inverting input of the comparator while the periodic output signal is at the first output level state and the input signal charges from the first voltage (Vlow) towards the second voltage. As the input signal becomes equal to the second voltage the output of the comparator switches to the second output level state and a second voltage reference (92,94, 96) provides the first voltage at the inverting input of the comparator.

    Abstract translation: 控制器振荡器提供具有第一和第二输出电平状态的周期性输出信号。 振荡器响应于在第一和第二电压(Vlow,Vhigh)之间变化的施加的锯齿信号。 振荡器由比较器(82)组成,其同相输入端接收施加到其上的锯齿信号,以在其输出(86)产生周期性输出信号。 第一电压参考电路(88,90和92)产生施加到比较器的反相输入的第二电压(Vhigh),同时周期性输出信号处于第一输出电平状态,并且输入信号从第一电压 电压(Vlow)朝向第二电压。 当输入信号变得等于第二电压时,比较器的输出切换到第二输出电平状态,第二电压基准(92,94,96)在比较器的反相输入端提供第一电压。

    Method for detecting a current and compensating for an offset voltage and circuit
    7.
    发明授权
    Method for detecting a current and compensating for an offset voltage and circuit 有权
    用于检测电流并补偿偏置电压和电路的方法

    公开(公告)号:US07956651B2

    公开(公告)日:2011-06-07

    申请号:US12557206

    申请日:2009-09-10

    CPC classification number: H03K5/2481 H03F2203/45212 H03K5/1536 H03K5/249

    Abstract: A method and circuit for detecting a current and compensating for an offset voltage. The circuit includes two comparators where one of the comparators has two input terminals and the other comparator has three input terminals. An input terminal of each of the two comparators are commonly connected together, the other input terminal of the two-input comparator is coupled for receiving a first reference voltage, and a second input terminal of the three-input comparator is coupled for receiving a second reference voltage. During a first portion of the period of a sense signal the two comparators operate in a sensing mode and during a second portion of the period of the sense signal the comparator having the three input terminals operate in a current nullification mode or an offset voltage compensation mode. An offset compensation signal is generated during the second portion of the sense signal.

    Abstract translation: 一种用于检测电流并补偿偏移电压的方法和电路。 该电路包括两个比较器,其中一个比较器具有两个输入端子,另一个比较器具有三个输入端子。 两个比较器中的每一个的输入端子共同连接在一起,双输入比较器的另一输入端耦合用于接收第一参考电压,并且三输入比较器的第二输入端耦合以接收第二 参考电压。 在感测信号的周期的第一部分期间,两个比较器在感测模式下操作,并且在感测信号的周期的第二部分期间,具有三个输入端的比较器工作在当前无效模式或偏移电压补偿模式 。 在感测信号的第二部分期间产生偏移补偿信号。

    LOW POWER VOLTAGE DETECTION CIRCUIT AND METHOD THEREFOR
    8.
    发明申请
    LOW POWER VOLTAGE DETECTION CIRCUIT AND METHOD THEREFOR 有权
    低功率电压检测电路及其方法

    公开(公告)号:US20090027087A1

    公开(公告)日:2009-01-29

    申请号:US11815835

    申请日:2005-06-06

    CPC classification number: G01R19/16538

    Abstract: In one embodiment, a low power voltage detection circuit includes a first voltage detection device that receives power from an input voltage and a second voltage detection device receives power from an output of the low power voltage detection circuit.

    Abstract translation: 在一个实施例中,低功率电压检测电路包括从输入电压接收功率的第一电压检测装置,并且第二电压检测装置从低功率电压检测电路的输出接收电力。

    Switched mode power supply with programmable skipping mode
    9.
    发明授权
    Switched mode power supply with programmable skipping mode 有权
    具有可编程跳跃模式的开关电源

    公开(公告)号:US06385061B1

    公开(公告)日:2002-05-07

    申请号:US09855202

    申请日:2001-02-12

    Abstract: A method and a power conversion apparatus having a substantially direct current input voltage, an output transformer having a primary inductor and at least a secondary winding, and a transistor for controlling the transfer of energy from the primary inductor to the secondary winding and coupled to a controller for switching the transistor on and off at a predetermined rate. A sensor for sensing the power required at the output of the conversion apparatus and for generating a voltage representative thereof is provided, as is provided a sensor for sensing the peak current in the primary inductor and for developing a voltage representative thereof. The controller contains a circuit for inhibiting selected on-cycles of the transistor when the power demand from the output of the conversion apparatus is less than the desired peak current in the primary inductor, the circuit comprising a comparator, a current source for developing a biasing voltage representative of the desired peak current in the primary inductor across a resistor external to the controller during the time when the transistor is switched off, means for receiving the voltage representative of the power required, comparing the biasing voltage to the voltage representative of the power required at the output, and having the output of the comparator coupled to the gate of the transistor for causing the transistor to skip on-cycles when the power demand from the output is below that power the biasing voltage is representative of.

    Abstract translation: 一种具有基本上直流输入电压的方法和功率转换装置,具有初级电感器和至少一个次级绕组的输出变压器和用于控制从主电感器到次级绕组的能量转移并耦合到 用于以预定速率开关晶体管的控制器。 提供了一种传感器,用于感测转换装置的输出所需的功率并用于产生代表它的电压,如传感器,用于感测初级电感器中的峰值电流并用于显现其代表的电压。 当来自转换装置的输出的功率需求小于初级电感器中的期望的峰值电流时,该控制器包含用于禁止晶体管选择的周期的电路,该电路包括比较器,用于产生偏置的电流源 表示在晶体管截止时间期间在控制器外部的电阻器上的初级电感器中期望的峰值电流的电压,用于接收代表所需功率的电压的装置,将偏置电压与代表功率的电压进行比较 并且使得比较器的输出耦合到晶体管的栅极,以使得当来自输出的功率需求低于偏置电压代表的功率时,晶体管跳过周期。

    Method of forming an oscillator circuit and structure therefor
    10.
    发明授权
    Method of forming an oscillator circuit and structure therefor 有权
    形成振荡电路的方法及其结构

    公开(公告)号:US07800456B2

    公开(公告)日:2010-09-21

    申请号:US12126122

    申请日:2008-05-23

    CPC classification number: H03K4/502 H02M3/1563

    Abstract: In one embodiment, an oscillator circuit is configured to oscillate at a base frequency. The oscillator is configured to receive a synchronization signal and restart a period of the oscillator signal responsively to the synchronization signal.

    Abstract translation: 在一个实施例中,振荡器电路被配置为以基本频率振荡。 振荡器被配置为接收同步信号并响应于同步信号重新启动振荡器信号的周期。

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