公开(公告)号：US08081495B2

公开(公告)日：2011-12-20

申请号：US12275011

申请日：2008-11-20

申请人： Ivo Vecera ,  Petr Kadanka ,  Nicolas Cyr

发明人： Ivo Vecera ,  Petr Kadanka ,  Nicolas Cyr

IPC分类号： H02M3/335

CPC分类号： H02M1/32 ,  H02M3/33507 ,  H02M2001/0009

摘要： An over-power compensation circuit for use in a switched mode power supply having a current sense circuit for sensing a current flowing through a power transistor of the switched mode power supply. The over-power compensation circuit includes a peak detector, a sample-and-hold circuit, a current offset generator, and an offset resistor. The peak detector has an input for receiving an input voltage derived from the input line, and an output. The sample-and-hold circuit has an input connected to the output of the peak detector, and an output. The current offset generator has an input connected to the output of the sample-and-hold circuit, and an output for providing an offset current. The offset resistor has a first terminal connected to the output of the current offset generator, and a second terminal adapted to be connected to a current conducting electrode of the power transistor.

摘要翻译： 一种用于开关模式电源的过功率补偿电路，具有用于感测流过开关模式电源的功率晶体管的电流的电流检测电路。 过功率补偿电路包括峰值检测器，采样保持电路，电流偏移发生器和偏移电阻器。 峰值检测器具有用于接收从输入线导出的输入电压的输入和输出。 采样保持电路具有连接到峰值检测器的输出的输入端和输出端。 电流偏移发生器具有连接到采样保持电路的输出的输入端和用于提供偏移电流的输出端。 偏移电阻器具有连接到电流偏移发生器的输出端的第一端子和适于连接到功率晶体管的导电电极的第二端子。

公开(公告)号：US06954112B2

公开(公告)日：2005-10-11

申请号：US10642539

申请日：2003-08-18

申请人： Ivo Vecera ,  Petr Kadanka

发明人： Ivo Vecera ,  Petr Kadanka

IPC分类号： H03K3/015 ,  H03K3/0231 ,  H03K4/502 ,  H03B5/20 ,  H03B5/24

CPC分类号： H03K4/502 ,  H03K3/015 ,  H03K3/0231

摘要： A variable-frequency oscillator (10) is formed to change an internal delay of the oscillator inversely proportional to changes in the frequency of the oscillator.

摘要翻译： 形成可变频率振荡器（10）以改变与振荡器的频率变化成反比的振荡器的内部延迟。

公开(公告)号：US20100123447A1

公开(公告)日：2010-05-20

申请号：US12275011

申请日：2008-11-20

申请人： Ivo Vecera ,  Petr Kadanka ,  Nicolas Cyr

发明人： Ivo Vecera ,  Petr Kadanka ,  Nicolas Cyr

IPC分类号： G05F1/00

CPC分类号： H02M1/32 ,  H02M3/33507 ,  H02M2001/0009

摘要： An over-power compensation circuit for use in a switched mode power supply having a current sense circuit for sensing a current flowing through a power transistor of the switched mode power supply. The over-power compensation circuit includes a peak detector, a sample-and-hold circuit, a current offset generator, and an offset resistor. The peak detector has an input for receiving an input voltage derived from the input line, and an output. The sample-and-hold circuit has an input connected to the output of the peak detector, and an output. The current offset generator has an input connected to the output of the sample-and-hold circuit, and an output for providing an offset current. The offset resistor has a first terminal connected to the output of the current offset generator, and a second terminal adapted to be connected to a current conducting electrode of the power transistor.

摘要翻译： 一种用于开关模式电源的过功率补偿电路，具有用于感测流过开关模式电源的功率晶体管的电流的电流检测电路。 过功率补偿电路包括峰值检测器，采样保持电路，电流偏移发生器和偏移电阻器。 峰值检测器具有用于接收从输入线导出的输入电压的输入和输出。 采样保持电路具有连接到峰值检测器的输出的输入端和输出端。 电流偏移发生器具有连接到采样保持电路的输出的输入端和用于提供偏移电流的输出端。 偏移电阻器具有连接到电流偏移发生器的输出端的第一端子和适于连接到功率晶体管的导电电极的第二端子。

公开(公告)号：US20050040897A1

公开(公告)日：2005-02-24

申请号：US10642539

申请日：2003-08-18

申请人： Ivo Vecera ,  Petr Kadanka

发明人： Ivo Vecera ,  Petr Kadanka

IPC分类号： H03K3/015 ,  H03K3/0231 ,  H03K4/502 ,  H03L7/00

CPC分类号： H03K4/502 ,  H03K3/015 ,  H03K3/0231

摘要： A variable-frequency oscillator (10) is formed to change an internal delay of the oscillator inversely proportional to changes in the frequency of the oscillator.

摘要翻译： 形成可变频率振荡器（10）以改变与振荡器的频率变化成反比的振荡器的内部延迟。

公开(公告)号：US20130113447A1

公开(公告)日：2013-05-09

申请号：US13291397

申请日：2011-11-08

申请人： Petr Kadanka

发明人： Petr Kadanka

IPC分类号： G05F1/10

CPC分类号： G05F1/56 ,  G05F1/563 ,  G05F1/565

摘要： A low dropout (LDO) regulator includes a voltage regulation loop for providing an output voltage to an output terminal, where the output voltage is proportional to a reference voltage. The voltage regulation loop includes a current bias input for receiving a bias current. The LDO regulator also includes a bias current control circuit for providing the bias current at a first value when the reference voltage is greater than a feedback voltage and at a second value higher than the first value when the reference voltage is less than the feedback voltage.

摘要翻译： 低压差（LDO）调节器包括用于向输出端子提供输出电压的电压调节回路，其中输出电压与参考电压成比例。 电压调节回路包括用于接收偏置电流的电流偏置输入。 LDO调节器还包括偏置电流控制电路，用于当参考电压大于反馈电压时提供偏置电流为第一值，并且当参考电压小于反馈电压时，该偏置电流控制电路以高于第一值的第二值提供偏置电流。

公开(公告)号：US06373295B1

公开(公告)日：2002-04-16

申请号：US09337714

申请日：1999-06-21

申请人： Petr Kadanka ,  Antonin Rozsypal

发明人： Petr Kadanka ,  Antonin Rozsypal

IPC分类号： H03B100

摘要： For use in a regulator, a driver (200) has a first transistor pair (203, 204) for alternatively pulling a drive line (OUT, 196) to magnitudes in a limited magnitude range between first and second reference lines (191, 192) depending on an input signal (IN, 195). Parallel to the first pair (203, 204), a second transistor pair (212, 210) alternatively pulls the drive line (OUT, 196) substantially to the reference lines (191, 192). The second pair (212, 210) is controlled by a comparator arrangement (120, 130) comparing the input signal to first (REF—1) and second (REF—2) reference signals and activating the second pair (212, 210) substantially only when the signal (OUT) on the drive line (196) driven by the first pair reaches a magnitude limit. The transistors (203, 204) of the first pair are arranged as emitter followers and the transistors (212, 210) of the second pair are arranged as switched current sources.

公开(公告)号：US6016017A

公开(公告)日：2000-01-18

申请号：US989726

申请日：1997-12-12

申请人： Petr Kadanka ,  Antonin Rozsypal

发明人： Petr Kadanka ,  Antonin Rozsypal

IPC分类号： H02J9/06 ,  H02J7/00

CPC分类号： H02J9/061 ,  Y10T307/615 ,  Y10T307/696

摘要： A system (200) comprises a regulator (250), a battery unit (220), a voltage sensitive circuit (210, e.g., memory circuit) and a switchable sensor (280). The battery unit (220), the memory circuit (210) and the switchable sensor (280) are parallel coupled to terminals (266 and 264) of the regulator (250). The switchable sensor (280) itself has a serially coupled voltage sensor (230) and switch (240). In a first operating mode, the regulator (250) provides a voltage V.sub.2 to the memory circuit (210) and to the switchable sensor (280). The switch (240) is closed. The voltage sensor (230) measures the voltage V.sub.2 and communicates the result to the regulator (250) via a signal input (267). In a second operating mode, the regulator (250) does not provide the voltage V.sub.2. The switch (240) is open. The battery unit (220) provides a voltage V.sub.4 to the memory circuit (210), but not to the voltage sensor (230). Parasitic current backflow from the battery unit (220) to the voltage sensor (230) is thereby substantially avoided.

摘要翻译： 系统（200）包括调节器（250），电池单元（220），电压敏感电路（210，例如存储器电路）和可切换传感器（280）。 电池单元（220），存储器电路（210）和可切换传感器（280）并联耦合到调节器（250）的端子（266和264）。 可切换传感器（280）本身具有串联耦合电压传感器（230）和开关（240）。 在第一操作模式中，调节器（250）向存储器电路（210）和可切换传感器（280）提供电压V2。 开关（240）关闭。 电压传感器（230）测量电压V2并通过信号输入（267）将结果传送到调节器（250）。 在第二操作模式中，调节器（250）不提供电压V2。 开关（240）打开。 电池单元（220）向存储器电路（210）提供电压V4，而不向电压传感器（230）提供电压V4。 从而基本上避免了从电池单元（220）到电压传感器（230）的寄生电流回流。

公开(公告)号：US20130307501A1

公开(公告)日：2013-11-21

申请号：US13473336

申请日：2012-05-16

申请人： Petr Kadanka ,  Pavel Londak

发明人： Petr Kadanka ,  Pavel Londak

IPC分类号： G05F1/10

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。

公开(公告)号：US5966004A

公开(公告)日：1999-10-12

申请号：US24434

申请日：1998-02-17

申请人： Petr Kadanka

发明人： Petr Kadanka

IPC分类号： G05F1/563 ,  G05F1/618

CPC分类号： G05F1/618 ,  G05F1/563

摘要： In an electronic system (100), a regulator (200) couples a supply device (110) to a consuming device (120) through a series switch (210) and provides output current I.sub.OUT. A shunt switch (220) is provided across the output. Fast changes of I.sub.OUT due to switching on and off the consuming device (120) are accommodated by the regulator (200). The regulator (200) has a voltage divider (250, 260) to measure V.sub.OUT. Operational amplifiers (230 and 240') control transistors (210, 220) with different switching thresholds, They compare a measurement voltage V.sub.M derived from V.sub.OUT to a reference voltage V.sub.REF. When the consuming device (120) is switched off, the first amplifier (230) makes the series transistor (210) non-conductive; and then the second amplifier (240') makes the shunt transistor (220) conductive for a short time. Capacitance at the output node (205) is substantially discharged. After overshooting, the voltage V.sub.OUT returns to its previous value. Unwanted undershooting of V.sub.OUT is substantially avoided.

摘要翻译： 在电子系统（100）中，调节器（200）通过串联开关（210）将供应装置（110）耦合到消耗装置（120）并提供输出电流IOUT。 在输出端提供分流开关（220）。 调节器（200）容纳由于打开和关闭消耗装置（120）导致的IOUT的快速变化。 调节器（200）具有用于测量VOUT的分压器（250,260）。 操作放大器（230和240'）控制具有不同切换阈值的晶体管（210,220），它们将从VOUT导出的测量电压VM与参考电压VREF进行比较。 当消耗装置（120）关闭时，第一放大器（230）使串联晶体管（210）不导通; 然后第二放大器（240'）使得并联晶体管（220）短时间导通。 输出节点（205）的电容基本上被释放。 超调后，电压VOUT返回到其先前的值。 基本上避免了VOUT的不需要的下冲。

公开(公告)号：US5920184A

公开(公告)日：1999-07-06

申请号：US841874

申请日：1997-05-05

申请人： Petr Kadanka

发明人： Petr Kadanka

IPC分类号： G05F3/24 ,  G05F3/26 ,  G05F3/30

CPC分类号： G05F3/245 ,  G05F3/265 ,  Y10S323/907

摘要： A first current (Iptat) having a magnitude proportional to absolute temperature is passed through a resistor (R3) and a PN-junction (QA) to produce first and second voltages (Vr+Vbe) having, respectively, positive and negative temperature coefficients which when summed provide a temperature stabilized internal reference voltage (Vbgrl). This internal reference voltage (Vbgrl) powers the current generator for currents (I1, 12)) which pass through a second resistor (R8, R9) and a second PN junction (Q20A, Q20B) to produce third and fourth voltages having respectively, positive and negative temperature coefficients which when summed provide a temperature stabilized external reference voltage (Vbgrl) having improved ripple rejection. There is no feedback from the external reference voltage (Vbgr2, V-out) to the first current (Iptat) generator (42).

摘要翻译： 具有与绝对温度成比例的幅度的第一电流（Iptat）通过电阻器（R3）和PN结（QA），以产生分别具有正温度系数和负温度系数的第一和第二电压（Vr + Vbe） 当相加时，提供温度稳定的内部参考电压（Vbgrl）。 该内部参考电压（Vbgr1）为通过第二电阻器（R8，R9）和第二PN结（Q20A，Q20B）的电流（I1，12）的电流发生器供电，以产生分别为正的第三和第四电压 和负温度系数，当相加时提供具有改善的纹波抑制的温度稳定的外部参考电压（Vbgrl）。 没有来自外部参考电压（Vbgr2，V-out）到第一电流（Iptat）发生器（42）的反馈。