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公开(公告)号：US10051225B2
公开(公告)日：2018-08-14
申请号：US15376352
申请日：2016-12-12
发明人： Fan Zhu , Yu-Shen Yang , Yingkan Lin , Zejian Wang , Liping Deng
摘要： An example method for fast ramp start-up during analog to digital conversion (ADC) includes opening a feedback bypass switch coupled to an amplifier to initiate an ADC operation, providing an injection current pulse to an inverting input of the amplifier, where the non-inverting input is coupled to a feedback bypass switch, integrating a first reference current coupled to the inverting input of the amplifier, where the integrating of the first reference current occurs due to the opening of the feedback bypass switch, and providing a reference voltage in response to the injection current pulse, the integrating of the first reference current, and a reference voltage coupled to a non-inverting input of the amplifier, where a level of the reference voltage is increased at least at initiation of the ADC operation in response to the injection current pulse.
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2.发明授权Method and apparatus for driving half bridge connected semiconductor power switches with a stable and extremely short interlock delay combined with a switching transition speed increase and a driving power consumption reduction 有权用于驱动半桥连接的半导体功率开关的方法和装置，具有稳定和极短的互锁延迟，结合开关转变速度增加和驱动功率消耗降低公开(公告)号：US09496857B2
公开(公告)日：2016-11-15
申请号：US14372720
申请日：2013-01-17
申请人： Franc Zajc
发明人： Franc Zajc
IPC分类号： H03K5/13 , H03K4/62 , H03K17/30 , H03K19/017 , H03K4/64 , H03K4/90 , H03K17/691
CPC分类号： H03K4/625 , H03K4/64 , H03K4/90 , H03K17/302 , H03K17/691 , H03K19/017
摘要： A driving circuit for driving half bridge connected electrically controlled power switches with a near zero interlock delay time between on-states of the power switches, wherein the driving circuit is configured to receive an input signal and to generate: —a first drive signal being adapted to switch a first power switch between the on and off state, —a second drive signal being adapted to switch a second power switch between the on and off state, wherein the signal curve of the first drive signal generated in response to a rising and falling edge of said input signal is mirrored with respect to the signal curve of the second drive signal along a time axis of a mirroring voltage value within a transition time, wherein the mirroring voltage value is adjusted such to be within the cutoff region of the power switches.
摘要翻译： 一种驱动电路，用于驱动半桥连接的电力控制功率开关，其中电源开关的导通状态之间具有接近零的互锁延迟时间，其中驱动电路被配置为接收输入信号并产生： - 第一驱动信号被适配 在开和关状态之间切换第一电源开关， - 第二驱动信号适于在导通和断开状态之间切换第二电源开关，其中响应于上升和下降而产生的第一驱动信号的信号曲线 所述输入信号的边缘相对于沿着转换时间内的镜像电压值的时间轴的第二驱动信号的信号曲线被镜像，其中镜像电压值被调整为在功率开关的截止区域内 。
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公开(公告)号：US20160330387A1
公开(公告)日：2016-11-10
申请号：US14858952
申请日：2015-09-18
申请人： SK hynix Inc.
发明人： Won-Seok HWANG
CPC分类号： H04N5/357 , H03K4/90 , H04N5/3577 , H04N5/3698 , H04N5/378
摘要： A ramp signal generator may include: a differential amplification unit suitable for generating an amplified signal corresponding to a voltage difference between a reference voltage and a feedback voltage; a driving unit suitable for driving an output terminal of the feedback voltage to a ground voltage in response to the amplified signal, and generating the feedback voltage corresponding to the reference voltage; and a ramp signal generation unit suitable for generating a ramp signal using a ramp supply voltage and the feedback voltage.
摘要翻译： 斜坡信号发生器可以包括：适于产生对应于参考电压和反馈电压之间的电压差的放大信号的差分放大单元; 驱动单元，适于响应于放大的信号将反馈电压的输出端子驱动到接地电压，并产生对应于参考电压的反馈电压; 以及适于使用斜坡电源电压和反馈电压产生斜坡信号的斜坡信号产生单元。
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4.发明申请METHOD AND APPARATUS FOR DRIVING HALF BRIDGE CONNECTED SEMICONDUCTOR POWER SWITCHES WITH A STABLE AND EXTREMELY SHORT INTERLOCK DELAY COMBINED WITH A SWITCHING TRANSITION SPEED INCREASE AND A DRIVING POWER CONSUMPTION REDUCTION 审中-公开用于驱动半桥连接的半导体电源开关的方法和装置，具有与切换转换速度增加和驱动功耗减少相结合的稳定且极为短暂的互锁延迟公开(公告)号：US20150109033A1
公开(公告)日：2015-04-23
申请号：US14372720
申请日：2013-01-17
申请人： Franc ZAJC
发明人： Franc Zajc
CPC分类号： H03K4/625 , H03K4/64 , H03K4/90 , H03K17/302 , H03K17/691 , H03K19/017
摘要： A driving circuit for driving half bridge connected electrically controlled power switches with a near zero interlock delay time between on-states of the power switches, wherein the driving circuit is configured to receive an input signal and to generate: —a first drive signal being adapted to switch a first power switch between the on and off state, —a second drive signal being adapted to switch a second power switch between the on and off state, wherein the signal curve of the first drive signal generated in response to a rising and falling edge of said input signal is mirrored with respect to the signal curve of the second drive signal along a time axis of a mirroring voltage value within a transition time, wherein the mirroring voltage value is adjusted such to be within the cutoff region of the power switches.
摘要翻译： 一种驱动电路，用于驱动半桥连接的电力控制功率开关，其中电源开关的导通状态之间具有接近零的互锁延迟时间，其中驱动电路被配置为接收输入信号并产生： - 第一驱动信号被适配 在开和关状态之间切换第一电源开关， - 第二驱动信号适于在导通和断开状态之间切换第二电源开关，其中响应于上升和下降而产生的第一驱动信号的信号曲线 所述输入信号的边缘相对于沿着转换时间内的镜像电压值的时间轴的第二驱动信号的信号曲线被镜像，其中镜像电压值被调整为在功率开关的截止区域内 。
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公开(公告)号：US09000813B2
公开(公告)日：2015-04-07
申请号：US13459538
申请日：2012-04-30
申请人： Kyu-Young Chung
发明人： Kyu-Young Chung
CPC分类号： H03K4/501 , H03K4/90 , H03K2005/00104
摘要： Waveform generation circuits are provided. A waveform generation circuit includes a waveform generation block configured to generate a waveform signal corresponding to a driving control signal, and a control signal generation block configured to generate the driving control signal to compensate the waveform signal for an environmental factor affecting the waveform generation circuit.
摘要翻译： 提供波形发生电路。 波形发生电路包括：波形发生模块，被配置为产生与驱动控制信号相对应的波形信号;以及控制信号生成模块，被配置为产生驱动控制信号，以补偿波形信号以产生影响波形发生电路的环境因素。
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公开(公告)号：US20150028924A1
公开(公告)日：2015-01-29
申请号：US13948970
申请日：2013-07-23
申请人： Analog Devices, Inc.
IPC分类号： H03K4/90
CPC分类号： H03K4/90
摘要： A voltage-controlled oscillator (VCO) comprises a supply voltage node, configured to receive a supply voltage, a VCO output capacitor, configured to provide an oscillating output voltage across the capacitor, a discharge switch configured to discharge the capacitor according to an oscillation frequency of the oscillating output voltage, and a comparator circuit configured to provide, to a control terminal of the discharge switch, a control signal that is determined based on a comparison of the output voltage and a specified threshold voltage. The oscillating output voltage includes a pulse having a ramp slope that is determined as a function of a magnitude of the supply voltage, and is capable of being adjusted independently of the oscillation frequency.
摘要翻译： 压控振荡器（VCO）包括被配置为接收电源电压的电源电压节点，被配置为在电容器两端提供振荡输出电压的VCO输出电容器，被配置为根据振荡频率对电容器进行放电的放电开关 以及比较器电路，被配置为向放电开关的控制端提供基于输出电压和指定阈值电压的比较确定的控制信号。 振荡输出电压包括具有作为电源电压的大小的函数确定的斜坡斜率的脉冲，并且能够独立于振荡频率进行调整。
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公开(公告)号：US08890587B2
公开(公告)日：2014-11-18
申请号：US13761976
申请日：2013-02-07
发明人： Ferdinand Stettner
摘要： An adaptive slope generator can include a current mirror configured to receive a multiplied current that varies as a function of an output voltage and a switching frequency of a switching current. The output voltage can characterize the switching current provided to a load coupled to an inductor. The current mirror can also be configured to receive an oscillation current. The oscillation current can have an amplitude that corresponds to the switching frequency of the switching current. The current mirror can be further configured to generate an output current substantially equivalent to the product of the oscillation current and the output voltage. The adaptive slope generator can also include a ramp generator configured to generate a compensation signal based on the output current. The compensation signal can have a sawtooth shape and a slope that varies as a function of the output voltage.
摘要翻译： 自适应斜率发生器可以包括配置成接收根据输出电压和开关电流的开关频率而变化的倍增电流的电流镜。 输出电压可以表征提供给耦合到电感器的负载的开关电流。 电流镜也可配置为接收振荡电流。 振荡电流可以具有对应于开关电流的开关频率的幅度。 电流镜可进一步配置成产生基本上等于振荡电流和输出电压的乘积的输出电流。 自适应斜率发生器还可以包括被配置为基于输出电流产生补偿信号的斜坡发生器。 补偿信号可以具有作为输出电压的函数而变化的锯齿形状和斜率。
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公开(公告)号：US20120212263A1
公开(公告)日：2012-08-23
申请号：US13459538
申请日：2012-04-30
申请人： Kyu-Young Chung
发明人： Kyu-Young Chung
IPC分类号： H03K4/90
CPC分类号： H03K4/501 , H03K4/90 , H03K2005/00104
摘要： Waveform generation circuits are provided. A waveform generation circuit includes a waveform generation block configured to generate a waveform signal corresponding to a driving control signal, and a control signal generation block configured to generate the driving control signal to compensate the waveform signal for an environmental factor affecting the waveform generation circuit.
摘要翻译： 提供波形发生电路。 波形发生电路包括：波形发生模块，被配置为产生与驱动控制信号相对应的波形信号;以及控制信号生成模块，被配置为产生驱动控制信号，以补偿波形信号以产生影响波形发生电路的环境因素。
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9.发明申请公开(公告)号：US20100007387A1
公开(公告)日：2010-01-14
申请号：US12172406
申请日：2008-07-14
申请人： Chih-Sheng Chang
发明人： Chih-Sheng Chang
CPC分类号： H03F3/2173 , H03K3/0231 , H03K4/06 , H03K4/90 , H03K7/08
摘要： A triangular wave generating circuit includes: an integrating unit including a capacitor, the integrating unit having an output for providing a triangular wave signal; first and second constant current sources for charging and discharging the capacitor; a switch unit for coupling the first and second current sources to the integrating unit to charge and discharge the capacitor in response to an internal clock signal; a high/low level limiter including first and second comparing units for comparing the output of the integrating unit with upper and lower triangular wave peak limit reference voltages, respectively, and providing output signals indicating when the output of the integrating unit coincides with the peak limit reference voltages; a clock generator for providing the internal clock signal in response to the comparing unit output signals; and means for varying a peak-to-peak swing of the triangular wave signal over time to synchronize the internal clock signal with an externally supplied clock pulse.
摘要翻译： 三角波发生电路包括：积分单元，包括电容器，所述积分单元具有用于提供三角波信号的输出; 用于充电和放电电容器的第一和第二恒流源; 开关单元，用于将第一和第二电流源耦合到积分单元，以响应于内部时钟信号对电容器进行充电和放电; 包括第一和第二比较单元的高/低电平限制器，用于将积分单元的输出分别与上下三角波峰值限制参考电压进行比较，并提供指示积分单元的输出何时与峰值极限一致的输出信号 参考电压; 时钟发生器，用于响应于所述比较单元输出信号提供所述内部时钟信号; 以及用于随时间改变三角波信号的峰 - 峰摆幅以使内部时钟信号与外部提供的时钟脉冲同步的装置。
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公开(公告)号：US5714897A
公开(公告)日：1998-02-03
申请号：US666746
申请日：1996-06-19
申请人： Mark R. Vitunic , Daniel D. Culmer
发明人： Mark R. Vitunic , Daniel D. Culmer
CPC分类号： H03K4/06
摘要： A signal generator generates a reference signal, centered about a reference voltage and having a predetermined period. The signal generator also generates output signals P and Z. The output signal P is a squarewave which changes levels at the peaks of the reference signal. The output signal Z is a squarewave which changes levels at the reference voltage crossings of the reference signal. A phase-shifted signal generator generates a phase-shifted signal using the output signals P and Z by switching in appropriate signal levels from the signal generator. The output signals P and Z are input to a switch control circuit which controls a network of switches, depending on a current region of the reference signal, to couple appropriate signals to an amplifier circuit. The switch control circuit determines the current region based on the state of the output signals P and Z. The amplifier circuit provides the phase-shifted signal in response to the signals coupled to it by the network of switches. In an alternate embodiment, the output signal Z is generated by a hysteretic comparator and changes levels at positive and negative threshold levels above and below the reference voltage. The values of the positive and negative threshold values are variable and determine the degree of phase shift between the phase-shifted signal and the reference signal.
摘要翻译： 信号发生器产生以参考电压为中心并具有预定周期的参考信号。 信号发生器还产生输出信号P和Z.输出信号P是改变参考信号峰值电平的方波。 输出信号Z是改变参考信号的参考电压交叉点处的电平的方波。 相移信号发生器通过从信号发生器切换适当的信号电平，使用输出信号P和Z产生相移信号。 输出信号P和Z被输入到开关控制电路，开关控制电路根据参考信号的当前区域来控制开关网络，以将适当的信号耦合到放大器电路。 开关控制电路基于输出信号P和Z的状态来确定当前区域。放大器电路响应于由开关网络与其耦合的信号来提供相移信号。 在替代实施例中，输出信号Z由迟滞比较器产生，并且在参考电压之上和之下的正和负阈值电平处改变电平。 正和负阈值的值是可变的，并确定相移信号和参考信号之间的相移程度。
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