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    • 95. 发明公开
    • An interface circuit for controlling electronic switches with boosted voltage signals
    • 用于控制电子开关具有增加的电压信号接口电路
    • EP0772299A1
    • 1997-05-07
    • EP95830455.2
    • 1995-10-30
    • SGS-THOMSON MICROELECTRONICS S.r.l.
    • Tomasini, LucianoCastello, RinaldoClerici, GiancarloBietti, Ivan
    • H03K17/06
    • H03K17/063
    • The interface circuit described is disposed between a generator (LG) of control signals (CS) and a plurality of electronic switches (SW) in order to produce boosted voltage signals (SCS) corresponding to the control signals (CS) for activating the electronic switches (SW). To avoid the use of capacitors with high capacitance and thus to save area of the integrated circuit, the circuit comprises a generator (SCK) of boosted-voltage clock signals (φ, φ ¯ ) and a plurality of voltage multipliers (VM) each having an input connected to an output of the control signal generator (LG), an output connected to at least one terminal for activating an electronic switch (SW) and two control terminals connected to the boosted-voltage clock-signal generator.
    • 所描述的接口电路被用于激活电子开关对应于控制信号(CS)的发电机控制信号的(LG)(CS)和电子开关(SW),以产生升压电压信号(SCS)多个之间设置 (SW)。 为了避免使用具有高电容的电容器,因而保存集成电路的面积,该电路包括升压电压的时钟信号的发生器(SCK)(PHI,PHI)和电压倍增器的多个(VM)每一个具有在 输入端连接到输出连接到至少一个终端,用于电子开关(SW)和连接到所述升压电压时钟信号发生器两个控制端子的激活控制信号发生器(LG)来输出的。
    • 96. 发明公开
    • Bootstrap line power supply regulator with no filter capacitor
    • VersorgungsspannungsreglerfürBootstrapleitung ohne Filterkondensator
    • EP0751621A1
    • 1997-01-02
    • EP95830283.8
    • 1995-06-30
    • SGS-THOMSON MICROELECTRONICS S.r.l.
    • Masini, MarcoStorti, SandroBoiocchi,Stefania
    • H03K17/06H03K17/042
    • H03F3/2171H03K17/04206H03K17/063
    • A power supply regulator (30) comprising a regulated-voltage source (23); a buffer (31) connected to the voltage source; and a diode (24) connected to the output of the buffer. A bootstrap capacitor (25) is located between the diode and the output of a power stage (1); and the output (6) of the power stage is switched between a low and a high value by a digital signal (IN) also supplied to the input of the buffer (31) which therefore generates a switched regulated output voltage (V 36 ) varying between a first value equal to the regulated voltage (V REG ) and a second lower value. The switched regulated voltage switches from the first to the second value before the output of the power stage (1) switches to high, thus immediately disabling the diode (24) and preventing current spikes due to minority carriers in the diode from being transmitted to the regulated-voltage source (23). The switched regulated voltage (V 36 ) switches from the second to the first value before the output (6) of the power stage (1) switches to low, to permit charging of the bootstrap capacitor (25) to the regulated voltage (V REG ) when the output (6) is low.
    • 一种电源调节器(30),包括调节电压源(23); 连接到电压源的缓冲器(31) 以及连接到缓冲器的输出端的二极管(24)。 自举电容器(25)位于二极管和功率级(1)的输出之间; 并且功率级的输出(6)通过也提供给缓冲器(31)的输入端的数字信号(IN)在低和高值之间切换,因此数字信号(IN)产生一个切换的稳压输出电压(V36) 等于调节电压(VREG)的第一值和第二较低值。 开关调节电压在功率级(1)的输出切换到高电平之前从第一值切换到第二值,从而立即禁用二极管(24)并且防止由二极管中的少数载流子引起的电流尖峰传输到 调节电压源(23)。 在功率级(1)的输出(6)切换到低电平之前,开关调节电压(V36)从第二值切换到第一值,以允许自举电容器(25)向调节电压(VREG)充电。 输出(6)为低电平。