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    • 3. 发明授权
    • Temperature sensor to run from power supply, 0.9 to 12 volts
    • 温度传感器从电源运行,0.9到12伏
    • US6137341A
    • 2000-10-24
    • US148048
    • 1998-09-03
    • Jay FriedmanRobert Allen Pease
    • Jay FriedmanRobert Allen Pease
    • G05F3/22G05F3/26G05F5/08G05F5/26
    • G05F3/265G05F3/222
    • A temperature sensor circuit generates an output voltage that is linearly proportional to temperature over a desired temperature range with a desired offset voltage. The temperature sensor includes two Proportional To Absolute Temperature (PTAT) current sources that generate PTAT currents and two transistors which conduct the PTAT currents with different current densities to establish a basic voltage PTAT across a resistor. An offset resistor coupled between the bases of the two transistors and a circuit node, shifts the basic PTAT voltage by an offset voltage. A first gain circuit couples to the collector of the first transistor and the offset resistor and generates a servo current (i.e., a current that tends to move the circuit to the desired state by correcting an error) to servo the base of the first transistor when there is a difference between the first transistor's collector current and the PTAT current. A second gain circuit generates a second servo current to servo the emitter of the second transistor when there is a difference between the second transistor's collector current and the PTAT current. These servo currents drive the two transistors such that the second gain circuit generates a temperature related output voltage shifted from the basic voltage PTAT by the offset voltage, and which follows a predetermined temperature scale and has a substantially linear function with a desired offset temperature.
    • 温度传感器电路在期望的偏移电压下产生与期望温度范围内的温度成线性比例的输出电压。 温度传感器包括产生PTAT电流的两个+ E,不P + EE比例+ E,uns T + EE o + E,uns A + EE绝对+ E,uns T + EE温度(PTAT)电流源和两个晶体管 以不同的电流密度进行PTAT电流,以建立跨电阻器的基本电压PTAT。 耦合在两个晶体管的基极和电路节点之间的偏移电阻将基本PTAT电压移位偏移电压。 第一增益电路耦合到第一晶体管的集电极和偏移电阻器,并产生伺服电流(即,趋向于通过校正误差将电路移动到期望状态的电流)来伺服第一晶体管的基极,当 第一晶体管的集电极电流和PTAT电流之间存在差异。 当第二晶体管的集电极电流和PTAT电流之间存在差异时,第二增益电路产生第二伺服电流以伺服第二晶体管的发射极。 这些伺服电流驱动两个晶体管,使得第二增益电路产生从基本电压PTAT偏移偏移电压的温度相关输出电压,并且其遵循预定的温度标度并且具有期望的偏移温度的基本线性函数。
    • 4. 发明授权
    • Power supply for cellular communication stations
    • 蜂窝通信站的电源
    • US5731693A
    • 1998-03-24
    • US735779
    • 1996-10-23
    • Kaz Furmanczyk
    • Kaz Furmanczyk
    • H02J7/00H02J9/06G05F5/08
    • H02J7/0065H02J9/061Y10T307/615
    • An AC-to-DC converter and regulator normally receives power from an AC utility line and provides a stable DC output to a load, such as the power amplifier and transmitter of a cell site. The DC output, or a separate dedicated output from the converter, is used to charge a backup battery when AC power is available. If AC power is interrupted, the backup battery provides power to the load by way of a separate DC-to-DC differential converter. The battery is connected in parallel with the differential converter input, but in series with the differential converter output. Thus, the differential converter receives operating power from the battery, and outputs a voltage which is summed with the battery output to drive the load. A control circuit for the differential converter senses the voltage provided to the load, and supplies a signal to the differential converter to adjust its output as necessary to maintain the optimum aggregate output to the load.
    • AC-DC转换器和调节器通常从AC电力线路接收电力,并向负载(例如电池站的功率放大器和发射器)提供稳定的DC输出。 直流输出或转换器的独立专用输出用于在交流电可用时为备用电池充电。 如果交流电源中断,备用电池通过单独的直流到直流差分转换器为负载供电。 电池与差分转换器输入并联,但与差分转换器输出串联。 因此,差分转换器从电池接收工作电力,并且输出与电池输出相加的电压以驱动负载。 用于差分转换器的控制电路感测提供给负载的电压,并且向差分转换器提供信号以根据需要调整其输出,以保持对负载的最佳聚合输出。
    • 6. 发明申请
    • CURRENT GENERATOR AND METHOD OF OPERATING
    • 电流发生器和操作方法
    • US20120161742A1
    • 2012-06-28
    • US12976504
    • 2010-12-22
    • Ming-Chieh HUANGChan-Hong CHERNChih-Chang LIN
    • Ming-Chieh HUANGChan-Hong CHERNChih-Chang LIN
    • G05F5/08
    • G05F1/648G11C5/147H02M3/158
    • A current generator includes an op-amp having a negative terminal arranged to be coupled to an input voltage, a resistance selection circuit having at least one tunable resistor connected with each other, and at least one power transistor. A gate of the at least one power transistor is coupled to an output of the op-amp, and a drain of the at least one power transistor is coupled to the at least one tunable resistor or a load. The resistance selection circuit is configured to select a node of the at least one tunable resistor based on the input voltage for coupling from a positive terminal of the op-amp. The at least one tunable resistor is configured to adjust a resistance setting to control a current level of the current generator based on a power supply voltage or a current of a reference resistor.
    • 电流发生器包括具有布置为耦合到输入电压的负极端子的运算放大器,具有彼此连接的至少一个可调电阻器的电阻选择电路和至少一个功率晶体管。 所述至少一个功率晶体管的栅极耦合到所述运算放大器的输出,并且所述至少一个功率晶体管的漏极耦合到所述至少一个可调电阻器或负载。 电阻选择电路被配置为基于用于从运算放大器的正极端子耦合的输入电压来选择至少一个可调电阻器的节点。 所述至少一个可调电阻器被配置为基于电源电压或参考电阻器的电流来调整电阻设置以控制电流发生器的电流水平。
    • 7. 发明授权
    • DC/DC power supply circuit with a bypass circuit
    • 具有旁路电路的DC / DC电源电路
    • US08013587B2
    • 2011-09-06
    • US12189338
    • 2008-08-11
    • Mitsuo SaekiKouichi Matsuda
    • Mitsuo SaekiKouichi Matsuda
    • G05F5/08
    • H02J7/0065H02M3/158H02M2001/0045
    • A power supply circuit includes: an input terminal; a DC voltage converter that converts a DC input voltage supplied to the input terminal into a DC output voltage; an output terminal that outputs the DC output voltage; a bypass circuit provided to the DC voltage converter between the input terminal and the output terminal; and a monitor control unit that monitors whether or not the DC input voltage satisfies a predetermined condition to be processed in the DC voltage converter, so as to connect the input terminal to the output terminal via the bypass circuit if the DC input voltage does not satisfy the predetermined condition.
    • 电源电路包括:输入端; 直流电压转换器,其将提供给所述输入端子的直流输入电压转换为直流输出电压; 输出端子,输出直流输出电压; 在输入端子和输出端子之间提供给DC电压转换器的旁路电路; 以及监视控制单元,其监视直流输入电压是否满足在直流电压转换器中要处理的预定条件,以便如果直流输入电压不满足则通过旁路电路将输入端子连接到输出端子 预定条件。
    • 8. 发明授权
    • Voltage regulator with high voltage protection
    • 稳压器具有高压保护功能
    • US07893668B2
    • 2011-02-22
    • US12136680
    • 2008-06-10
    • Alireza Zolfaghari
    • Alireza Zolfaghari
    • G05F5/08G05F1/56
    • G05F1/575
    • A method for regulating a voltage in an integrated circuit device includes providing a first regulated output based upon a first voltage input range and subsequently receiving the first regulated output and providing a second regulated output based upon a second voltage input range of the first regulated output. A circuit is further provided that operates accordingly. Additionally, a clipper circuit is provided at the input to protect for over voltage conditions that may results, for example, from a charging battery to cause an output voltage of the battery to substantially exceed ordinary output voltage levels.
    • 一种用于调节集成电路器件中的电压的方法包括:基于第一电压输入范围提供第一调节输出,随后接收第一调节输出,并且基于第一调节输出的第二电压输入范围提供第二调节输出。 还提供了相应地进行操作的电路。 此外,在输入端提供了一个限幅器电路,以保护可能导致例如从充电电池导致电池的输出电压基本上超过普通输出电压电平的过电压条件。