Method of forming a power supply controller and structure therefor
    11.
    发明授权
    Method of forming a power supply controller and structure therefor 有权
    形成电源控制器及其结构的方法

    公开(公告)号:US08866456B2

    公开(公告)日:2014-10-21

    申请号:US13473336

    申请日:2012-05-16

    IPC分类号: G05F1/56

    CPC分类号: G05F1/56

    摘要: In one embodiment, a method of forming a power supply controller may include configuring the power supply controller to control a pass transistor to form an output current responsively to a control signal and independently of the value of the output voltage until the control signal is less than a deviation from a desired value of the output voltage.

    摘要翻译: 在一个实施例中,形成电源控制器的方法可以包括配置电源控制器以控制传输晶体管以响应于控制信号形成输出电流,并且独立于输出电压的值直到控制信号小于 与输出电压的期望值的偏差。

    Accurate timing generator and method therefor
    12.
    发明授权
    Accurate timing generator and method therefor 有权
    准确的定时发生器及其方法

    公开(公告)号:US07579892B2

    公开(公告)日:2009-08-25

    申请号:US11441328

    申请日:2006-05-26

    申请人: Petr Kadanka

    发明人: Petr Kadanka

    IPC分类号: G06F1/04

    摘要: In one embodiment, a reference generator forms a reference signal that may have temperature and process variations. A comparator that has similar variations is used to detect a signal using the reference.

    摘要翻译: 在一个实施例中,参考发生器形成可能具有温度和过程变化的参考信号。 使用具有相似变化的比较器来检测使用参考的信号。

    Method and apparatus for maintaining stability in a circuit under variable load conditions

    公开(公告)号:US06556083B2

    公开(公告)日:2003-04-29

    申请号:US09736461

    申请日:2000-12-15

    申请人: Petr Kadanka

    发明人: Petr Kadanka

    IPC分类号: H03F114

    CPC分类号: H03F1/086 H03F2200/153

    摘要: A circuit (10) having multiple poles within an active frequency range employs a movable zero (66) to maintain stability in the circuit (10) under variable load conditions. A pole (62) created by a frequency compensation element (14) maintains a fixed frequency within the active frequency range of the circuit (10). In addition, a variable load impedance (36) coupled to the circuit (10) generates a load pole (64) within the active frequency range of the circuit (10) that changes frequency over time. As the load pole (64) changes frequency, the frequency of the movable zero (66) is adjusted to achieve an enhanced stability condition within the circuit (10). In one embodiment, the frequency of the movable zero (66) tracks the frequency of the load pole (64) as the load impedance (36) changes.

    Regulator circuit having a bandgap generator coupled to a voltage sensor, and method
    14.
    发明授权
    Regulator circuit having a bandgap generator coupled to a voltage sensor, and method 失效
    具有耦合到电压传感器的带隙发生器的调节器电路及方法

    公开(公告)号:US06175224B1

    公开(公告)日:2001-01-16

    申请号:US09106934

    申请日:1998-06-29

    申请人: Petr Kadanka

    发明人: Petr Kadanka

    IPC分类号: G05F140

    CPC分类号: G05F3/30

    摘要: A regulator (200) has a pass transistor (250) for transferring a voltage from an input (202) to an output (205). A voltage sensor (231) at the output (205) carries a PTAT current (IA) A generator with diode or transistor chains (271, 272) derives a voltage VRES from serially coupled base-emitter path of transistors (381-386) having different current densities. The generator (271, 272) and a transistor pair (273) form a bandgap reference circuit. Each chain (271, 272) has transistors alternatively of a first type (pnp) and second type (npn). The value ratio (R4/R3) of resistances (240, 230) in the voltage sensor (231) can be chosen such, that the noise components of the voltage VOUT at the output (205) is low.

    摘要翻译: 调节器(200)具有用于将电压从输入(202)传送到输出(205)的通过晶体管(250)。 在输出端(205)处的电压传感器(231)携带具有二极管或晶体管链(271,272)的PTAT电流(IA)A发生器,其从具有晶体管(381-386)的串联耦合的基极 - 发射极路径导出电压VRES, 不同的电流密度。 发生器(271,272)和晶体管对(273)形成带隙参考电路。 每个链(271,272)具有交替地具有第一类型(pnp)和第二类型(npn)的晶体管。 可以选择电压传感器(231)中的电阻(240,230)的值比(R4 / R3),使得输出(205)处的电压VOUT的噪声分量低。

    Power switching circuit
    15.
    发明授权
    Power switching circuit 失效
    电源开关电路

    公开(公告)号:US5616971A

    公开(公告)日:1997-04-01

    申请号:US539900

    申请日:1995-10-06

    申请人: Petr Kadanka

    发明人: Petr Kadanka

    摘要: A power switching circuit includes a power switching NPN transistor (1) having its collector electrode coupled to a reference potential terminal (17) and its emitter electrode coupled to an output terminal (7). A driver circuit (5) is provided having an input coupled to a supply terminal (6) and a driving current output coupled to the base electrode of the power transistor (1). A PNP transistor(4) has its emitter electrode coupled to the output terminal(7), its base electrode coupled to a reference voltage terminal (9) for receiving, in operation, a voltage which is positive relative to the reference potential and its collector electrode coupled to the base electrode of an NPN transistor (2). The NPN transistor (2) has its collector electrode coupled to the collector electrode of the power transistor (1) and its emitter electrode coupled to the base electrode of the power transistor (1).

    摘要翻译: 电源开关电路包括电源开关NPN晶体管(1),其具有耦合到参考电位端子(17)的集电极,并且其发射极耦合到输出端子(7)。 提供了一个驱动电路(5),其具有耦合到电源端子(6)的输入端和耦合到功率晶体管(1)的基极的驱动电流输出端。 PNP晶体管(4)的发射电极耦合到输出端子(7),其基极耦合到参考电压端子(9),用于在操作中接收相对于参考电位为正的电压及其集电极 电极,其耦合到NPN晶体管(2)的基极。 NPN晶体管(2)的集电极耦合到功率晶体管(1)的集电极,其发射极耦合到功率晶体管(1)的基极。

    Adaptive bias for low power low dropout voltage regulators
    16.
    发明授权
    Adaptive bias for low power low dropout voltage regulators 有权
    低功耗低压差稳压器的自适应偏置

    公开(公告)号:US08922179B2

    公开(公告)日:2014-12-30

    申请号:US13323082

    申请日:2011-12-12

    申请人: Petr Kadanka

    发明人: Petr Kadanka

    IPC分类号: G05F1/00

    CPC分类号: G05F1/565

    摘要: A low dropout (LDO) voltage regulator includes a voltage regulation loop for providing a gate drive signal to an output device, the gate drive signal proportional to an output current. The voltage regulation loop includes a current bias input for receiving a bias current. The LDO voltage regulator further includes a current bias control circuit for providing the adaptive bias current at a first value that is proportional to current limit value lab and the width-to-length ratio of transistors of the transconductance amplifier when the output current less than or equal to a threshold and increases the bias current from a threshold to a current limit value. The output current varies substantially linearly over a range of output current values between the threshold and the current limit value.

    摘要翻译: 低压差(LDO)电压调节器包括用于向输出装置提供栅极驱动信号的电压调节回路,栅极驱动信号与输出电流成比例。 电压调节回路包括用于接收偏置电流的电流偏置输入。 所述LDO电压调节器还包括电流偏置控制电路,用于在所述输出电流小于或等于所述输出电流时,将所述自适应偏置电流提供为与电流限制值实验室成比例的第一值和所述跨导放大器的晶体管的宽度与长度之比, 等于阈值,并将偏置电流从阈值增加到电流极限值。 输出电流在阈值和电流极限值之间的输出电流值的范围内基本线性地变化。

    Voltage sense circuit and method therefor
    17.
    发明授权
    Voltage sense circuit and method therefor 有权
    电压检测电路及其方法

    公开(公告)号:US07692469B2

    公开(公告)日:2010-04-06

    申请号:US11105255

    申请日:2005-04-14

    申请人: Petr Kadanka

    发明人: Petr Kadanka

    IPC分类号: H03K5/08

    CPC分类号: G05F3/265

    摘要: In one embodiment, a voltage sense circuit receives an ac input signal and forms a rectified output voltage that is representative of the ac input signal.

    摘要翻译: 在一个实施例中,电压检测电路接收交流输入信号并形成代表交流输入信号的整流输出电压。

    Accurate timing generator and method therefor
    18.
    发明申请
    Accurate timing generator and method therefor 有权
    准确的定时发生器及其方法

    公开(公告)号:US20070273423A1

    公开(公告)日:2007-11-29

    申请号:US11441328

    申请日:2006-05-26

    申请人: Petr Kadanka

    发明人: Petr Kadanka

    IPC分类号: G06F1/04

    摘要: In one embodiment, a reference generator forms a reference signal that may have temperature and process variations. A comparator that has similar variations is used to detect a signal using the reference.

    摘要翻译: 在一个实施例中,参考发生器形成可能具有温度和过程变化的参考信号。 使用具有相似变化的比较器来检测使用参考的信号。

    Voltage sense circuit and method therefor
    19.
    发明申请
    Voltage sense circuit and method therefor 有权
    电压检测电路及其方法

    公开(公告)号:US20060232257A1

    公开(公告)日:2006-10-19

    申请号:US11105255

    申请日:2005-04-14

    申请人: Petr Kadanka

    发明人: Petr Kadanka

    IPC分类号: G05F3/20 G05F3/16

    CPC分类号: G05F3/265

    摘要: In one embodiment, a voltage sense circuit receives an ac input signal and forms a rectified output voltage that is representative of the ac input signal.

    摘要翻译: 在一个实施例中,电压检测电路接收交流输入信号并形成代表交流输入信号的整流输出电压。

    Reduced noise band gap reference with current feedback and method of using
    20.
    发明授权
    Reduced noise band gap reference with current feedback and method of using 有权
    降低噪声带隙参考电流反馈和使用方法

    公开(公告)号:US06472928B1

    公开(公告)日:2002-10-29

    申请号:US09848198

    申请日:2001-05-04

    申请人: Petr Kadanka

    发明人: Petr Kadanka

    IPC分类号: G05F110

    CPC分类号: G05F3/30

    摘要: A band gap reference (32) provides low noise operation utilizing capacitor (98) to produce a low pass filter operating with high impedance node (104). Increased speed is realized using feedback signals at nodes (102) and (100) to control differential transistor pair (36, 42). A first current feedback stage using transistors (44, 50, 52 and 54) and a second current feedback stage using transistors (60, 62, 68, 70) is used to control current mirror stages which set the charge and discharge current at node (104). A first current mirror stage using transistors (64,76) comprise the current sink used to discharge capacitor (98) at node (104) and a second current mirror stage using transistors (58,74) comprise the current source used to charge capacitor (98) at node (104).

    摘要翻译: 带隙基准(32)利用电容器(98)提供低噪声操作,以产生用高阻抗节点(104)工作的低通滤波器。 通过节点(102)和(100)处的反馈信号来实现增加的速度以控制差分晶体管对(36,42)。 使用晶体管(44,50,52和54)和使用晶体管(60,62,68,70)的第二电流反馈级的第一电流反馈级用于控制电流镜级,其设置节点处的充电和放电电流( 104)。 使用晶体管(64,76)的第一电流镜级包括用于在节点(104)处放电电容器(98)的电流吸收器和使用晶体管(58,74)的第二电流镜级,包括用于对电容器( 98)。