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    • 3. 发明申请
    • CURRENT LIMITER CIRCUIT
    • US20100219892A1
    • 2010-09-02
    • US12063465
    • 2006-07-17
    • Guillaume De Cremoux
    • Guillaume De Cremoux
    • H03F3/16
    • G05F1/575
    • The present invention relates to a circuit configuration for detecting and rapidly limiting large current increase based on high current injection at the output terminal (out). In particular, a gate-controlled switching device (PO), controlled by a driver circuit (40) through a low resistive element (RO) and passed through by a current overshoot, will be alternatively driven by the circuit of the present invention while having its control terminal charged by the high injected current. Thus, when large voltage increase generated by a steep front impulse with a positive slope is detected by the capacitor (C) and transmitted to the gate terminal (GateN), the circuit of the present invention bypasses the driver circuit (40) while injecting a significant current peak issued from the transistor (P3) towards the gate terminal (GateP) of the gate-controlled switching device (PO), whereas the capacitor (C) is discharging very slowly through the gate terminal (GateN). The current amplification leading to the injected current peak is made through the use of the current mirror (P4, P3) with a large current mirror ratio and enhanced by the presence of the diodes (DO, D1). In a quiescent mode or when large voltage decrease generated by a steep front impulse with a negative slope is detected by the capacitor (C) and transmitted to the gate terminal (GateN), the transistor (P4) becomes short-circuited by the current source (CS3) sourcing the current flowing through the diode (D1), such that the current mirror (P4+P5, P3) is virtually replaced by the current mirror (P5, P3) with a much lower current mirror ratio. As a result, the low current of the sinking current source (CS2) will be sufficient to sink the lower current mirrored by the current mirror (P3, P5) and will then allow the driver circuit (40) to take over the control of the switching device (PO). Finally, this circuit configuration operates unidirectionally while limiting large current increase but not large current decrease through the gate-controlled switching device (PO).
    • 5. 发明申请
    • Common-Mode Voltage Generator for a Battery-Supplied Handset Apparatus
    • 用于电池供电的手持设备的共模电压发生器
    • US20090167277A1
    • 2009-07-02
    • US11632613
    • 2005-07-06
    • Guillaume De Cremoux
    • Guillaume De Cremoux
    • G05F5/00
    • G05F1/56
    • A common-mode voltage generator for a battery-supplied apparatus is provided with a battery voltage ripple-insensitive sensor comprising a voltage dividing circuit and a number of hysteresis comparators, by means of which a battery voltage, or a fraction thereof is compared with a series of reference voltages. These reference voltages are derived from an on-chip voltage by means of said voltage dividing circuit. The hysteresis of said hysteresis comparators is larger than the ripple on said battery voltage. Further there is an adjustable regulation loop. The sensor detects a battery voltage range and adjusts the regulation loop on the basis of this range. The regulation loop provides an output commonmode voltage, which is equal to a fraction, preferably half the battery voltage.
    • 用于电池供电装置的共模电压发生器具有电池电压纹波不敏感传感器,该电池电压纹波不敏感传感器包括一个分压电路和多个滞后比较器,通过该电压电压或一部分将电池电压或其一部分与 一系列参考电压。 这些参考电压通过所述分压电路从片上电压导出。 所述滞后比较器的滞后大于所述电池电压上的纹波。 此外还有一个可调的调节回路。 传感器检测电池电压范围,并根据此范围调整调节回路。 调节回路提供输出共模电压,其等于分数,优选电池电压的一半。
    • 9. 发明授权
    • DC to DC converter
    • 直流到直流转换器
    • US07808217B2
    • 2010-10-05
    • US11975305
    • 2007-10-18
    • Guillaume de CremouxInnes J. A. Gray
    • Guillaume de CremouxInnes J. A. Gray
    • G05F1/10G05F1/613
    • H02M3/1582H02M2001/0009
    • A DC to DC converter comprising: an inductor; a plurality of switches for controlling current flow in the inductor such that the inductor is connected to a supply in a first phase of operation such that the inductor receives energy from the supply, and such that the inductor is connected to an output in a second phase of operation in order to deliver energy to the output; and a controller arranged to monitor the current flow in the inductor at the end of the second phase of operation and to modify the relative duration of the second phase compared to the first phase as a function of the current flow.
    • 一种直流 - 直流转换器,包括:电感器; 用于控制电感器中的电流的多个开关,使得电感器以第一操作相连接到电源,使得电感器从电源接收能量,并且使得电感器以第二相连接到输出端 的运行,以便将能量传递给输出; 以及控制器,其布置成在第二操作阶段结束时监测电感器中的电流流动,并且作为当前流量的函数来修改与第一相位相比的第二相位的相对持续时间。
    • 10. 发明授权
    • Emulator circuit, a controller for a switched mode power supply, and a switched mode power supply
    • 仿真器电路,开关模式电源的控制器和开关模式电源
    • US07768245B1
    • 2010-08-03
    • US12431199
    • 2009-04-28
    • Guillaume De Cremoux
    • Guillaume De Cremoux
    • G05F1/00G05F3/16
    • H02M3/156H02M3/1582H02M2001/0009
    • An emulator circuit for forming a signal representative of current flow in an inductor of a switched mode power supply, where the inductor is associated with a switching arrangement operational to connect a first node of the inductor to a first voltage (Vin) or to one of a reference voltage (gnd) or a current flow path, a second node of the inductor to a second voltage (Vout) or to one of a second reference voltage (gnd) or the current flow path, and wherein the emulator circuit forms a emulator output signal representing the integral with respect to time for which the first and second node of the inductor are connected to the first voltage and the second voltage respectively.
    • 一种用于形成代表开关模式电源的电感器中的电流的信号的仿真器电路,其中所述电感器与可操作以将所述电感器的第一节点连接到第一电压(Vin)的开关装置相关联,或者耦合到 参考电压(gnd)或电流流动路径,电感器的第二节点到第二电压(Vout)或第二参考电压(gnd)或电流流动路径之一,并且其中仿真器电路形成仿真器 输出信号表示相对于电感器的第一和第二节点分别连接到第一电压和第二电压的时间的积分。