公开(公告)号：US06933772B1

公开(公告)日：2005-08-23

申请号：US10770149

申请日：2004-02-02

申请人： Jaideep Banerjee ,  Tushar S Nandurkar

发明人： Jaideep Banerjee ,  Tushar S Nandurkar

IPC分类号： G05F1/10 ,  G05F1/565 ,  G05F3/02

CPC分类号： G05F1/565

摘要： A low drop out voltage regulator (10) that receives an input voltage and generates a substantially constant output voltage includes a gain stage (12), a buffer stage (14), an output driver transistor (16), and first and second load current sense circuits (18, 20). The first load current sense circuit is connected between the output driver transistor and the buffer stage and adaptively increases a bias current of the buffer stage as a function of the load current. The second load current sense circuit is connected between the output driver transistor and the gain stage and adaptively decreases a bias current of the gain stage as the load current increases.

摘要翻译： 接收输入电压并产生基本上恒定的输出电压的低压降稳压器（10）包括增益级（12），缓冲级（14），输出驱动晶体管（16）和第一和第二负载电流 感测电路（18,20）。 第一负载电流检测电路连接在输出驱动晶体管和缓冲级之间，并根据负载电流自适应地增加缓冲级的偏置电流。 第二负载电流检测电路连接在输出驱动晶体管和增益级之间，随着负载电流的增加自适应地减小增益级的偏置电流。

公开(公告)号：US07388422B2

公开(公告)日：2008-06-17

申请号：US11441415

申请日：2006-05-25

申请人： Qadeer A. Khan ,  Hidetaka Fukazawa ,  Tushar S. Nandurkar

发明人： Qadeer A. Khan ,  Hidetaka Fukazawa ,  Tushar S. Nandurkar

IPC分类号： G06F1/10

CPC分类号： H02M3/07 ,  H03K2217/0063 ,  H03K2217/0081

摘要： A charge pump circuit for a high side drive circuit and a driver driving voltage circuit that stably output a voltage when input voltage is low. The charge pump circuit includes first and second transistors, first and second capacitors, and first to third diodes. The first capacitor has a high voltage side, connected to a load driving power supply voltage via the first diode, and a low voltage side, connected to the load driving power supply voltage via the first transistor or grounded via the second transistor driven in synchronization with the first transistor. The high voltage side is supplied, via the third diode, with a low side drive voltage that is as an output voltage of a low side charge pump, and functions to output high side drive voltage to a high side pre-driver circuit via the second diode.

摘要翻译： 用于高侧驱动电路的电荷泵电路和当输入电压低时稳定地输出电压的驱动器驱动电压电路。 电荷泵电路包括第一和第二晶体管，第一和第二电容器以及第一至第三二极管。 第一电容器具有高电压侧，经由第一二极管连接到负载驱动电源电压，以及低压侧，经由第一晶体管连接到负载驱动电源电压，或者经由与第一晶体管同步驱动的第二晶体管接地 第一个晶体管。 高压侧通过第三二极管供给作为低端电荷泵的输出电压的低侧驱动电压，并且用于通过第二二极管将高侧驱动电压输出到高侧预驱动器电路 二极管。

公开(公告)号：US07135842B2

公开(公告)日：2006-11-14

申请号：US11047494

申请日：2005-01-31

申请人： Jaideep Banerjee ,  Tushar S. Nandurkar

发明人： Jaideep Banerjee ,  Tushar S. Nandurkar

IPC分类号： G05F1/565

CPC分类号： G05F1/56

摘要： A regulated power source for supplying power to an external circuit includes a voltage sensing circuit and a voltage regulator. The voltage sensing circuit generates a feedback voltage by comparing voltage drops at a plurality of sense points within the external circuit. The feedback voltage is based on the maximum voltage drop at the sense points. The voltage regulator regulates the voltage supplied to the external circuit in accordance with the feedback voltage.

摘要翻译： 用于向外部电路供电的稳压电源包括电压感测电路和电压调节器。 电压感测电路通过比较外部电路内的多个感测点处的电压降来产生反馈电压。 反馈电压基于感测点处的最大电压降。 电压调节器根据反馈电压调节提供给外部电路的电压。