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公开(公告)号：US10511228B2
公开(公告)日：2019-12-17
申请号：US16259707
申请日：2019-01-28
发明人： Chih-Lien Chang , Min-Rui Lai
摘要： A DC-DC converting controller coupled to an output stage and an external resistor network and providing a pulse-width-modulation (PWM) signal to control the output stage to provide an output voltage is disclosed. The DC-DC converting controller includes a sensing circuit, a droop current circuit, a first pin and a PWM signal control loop. The sensing circuit, coupled to the output stage, provides a sensing current. The droop current circuit, coupled to the sensing circuit, provides a droop current according to the sensing current. The first pin, coupled to the droop current circuit and external resistor network, provides the droop current to make the external resistor network provide a second reference voltage. The PWM signal control loop, coupled to the external resistor network, generates a PWM signal according to the output voltage and the second reference voltage. The droop current is reduced to a default value with a default time.
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公开(公告)号：US10177663B2
公开(公告)日：2019-01-08
申请号：US15987999
申请日：2018-05-24
发明人： Hsien-Cheng Liu , Zhao-Wai Liu , Liang-Yi Chen
摘要： A multi-phase power controller coupled to resonant power converting circuits providing an output voltage is disclosed. The multi-phase power controller includes a current sensing unit, a frequency adjusting circuit and a duty cycle adjusting circuit. The current sensing unit, coupled to a first resonant power converting circuit, provides a first sensing current. The frequency adjusting circuit includes an error amplifier and a first ramp signal generation circuit. The error amplifier provides an error signal according to the output voltage and a reference voltage. The first ramp signal generation circuit provides a first ramp signal according to the error signal. The duty cycle adjusting circuit provides a first PWM signal to the first resonant power converting circuit according to a default voltage and the first ramp signal. The change of the duty cycle of the first PWM signal is related to the first sensing current, the default voltage and the first ramp signal.
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公开(公告)号：US20180331619A1
公开(公告)日：2018-11-15
申请号：US15888087
申请日：2018-02-05
发明人： Chih-Wen Hsiao , Chih-Lien Chang
摘要： A DC-to-DC controller and a control method thereof are provided. The DC-to-DC controller couples to an output stage, and the output stage provides an output voltage and includes an upper bridge switch and a lower bridge switch. The DC-to-DC controller includes a time signal generating unit and a time signal control circuit. The time signal control circuit couples to the time signal generating unit and receives a preset voltage and the output voltage. During a soft start period, if the output voltage is lower than the preset voltage, after the upper bridge switch is turned off and before the upper bridge switch is turned on again, the time signal control circuit turns off the upper bridge switch and the lower bridge switch for a first preset time and turns on the lower bridge switch for a second preset time.
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公开(公告)号：US10103727B1
公开(公告)日：2018-10-16
申请号：US15916180
申请日：2018-03-08
发明人： Chih-Wen Hsiao , Wen-Chieh Tsai
IPC分类号： H03K17/16
摘要： A power switch circuit includes a first input voltage, a first switch element, a switcher, a first bootstrap capacitor, and a second bootstrap capacitor. The first switch element includes a first control end, a first input end, and a first output end. The first input end is coupled to the first input voltage. The first output end provides an output voltage. The switcher is coupled to the first switch element. The first bootstrap capacitor is coupled to the switcher and provides a first driving voltage. The second bootstrap capacitor is coupled to the switcher and provides a second driving voltage. The first bootstrap capacitor and the second bootstrap capacitor alternately supply the first driving voltage or the second driving voltage to the first control end through an operation of the switcher.
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75.发明授权公开(公告)号：US09852860B2
公开(公告)日：2017-12-26
申请号：US15059306
申请日：2016-03-03
发明人： Chih-Wen Hsiao
IPC分类号： H01H47/00
摘要： A method for generating a current adapted to a parameter setting circuit is provided. The parameter setting circuit is coupled to an external setting impedor. The external setting impedor is coupled to an external voltage and outputs a first current. The method for generating the current includes the following steps. A reference voltage and an end voltage of a reference resistor are compared to get a comparison result. The end voltage is adjusted according to a comparison result. A setting parameter is obtained according to the adjusted end voltage. A setting current is generated according to a compensation current. The compensation current is related to a first current and the setting parameter. In addition, a parameter setting circuit of a power conversion apparatus is also provided.
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公开(公告)号：US09653931B2
公开(公告)日：2017-05-16
申请号：US14710608
申请日：2015-05-13
发明人： Tung-Hang Liu , Chih-Liang Wu , Wei-Jung Chen
CPC分类号： H02J7/0029 , G01R31/3606 , H02H7/18 , H02J2007/0039 , H02J2007/0067
摘要： A battery protection device adapted to be electrically connected to a load and a battery set and including a signal terminal, a discharge circuit and a control circuit is provided. The signal terminal is electrically connected to the load. The discharge circuit is electrically connected to the signal terminal. The control circuit detects a sensing voltage from the signal terminal, and counts a number of times that the battery protection device is switched to a protection mode from a normal mode, so as to obtain a counting value. The control circuit determines whether to enter the protection mode or the normal mode according to a reference voltage. In the protection mode, the control circuit adjusts the reference voltage or the control circuit controls the discharge circuit to form a discharge path passing through the signal terminal, the discharge circuit and a ground.
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公开(公告)号：US09651626B2
公开(公告)日：2017-05-16
申请号：US14741478
申请日：2015-06-17
发明人： Kuo-Liang Teng , Jih-Liang Juang
IPC分类号： G01N27/416 , G01R31/36
CPC分类号： G01R31/3675 , G01R31/3634
摘要： An electric capacity measurement apparatus with temperature compensation and a temperature compensation method thereof are provided. The electric capacity measurement apparatus includes an electric capacity measurement circuit, a non-volatile memory, a temperature measurement circuit and a control circuit. The electric capacity measurement circuit is configured to obtain an input current signal and compensate the input current signal according to a present invalid current range or a present zero current offset to obtain an electric capacity signal. The non-volatile memory is configured to store a plurality of test parameters at different temperatures related to the electric capacity measurement circuit in a test stage. The temperature measurement circuit measures a present temperature value of the electric capacity measurement circuit in an operation stage. The control circuit generates a present invalid current range or a present zero current offset according to the present temperature value and the plurality of test parameters.
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公开(公告)号：US20160349778A1
公开(公告)日：2016-12-01
申请号：US15233966
申请日：2016-08-11
发明人： Chih-Lien Chang
IPC分类号： G05F1/625
CPC分类号： G05F1/625
摘要： A method with function parameter setting and an integrated circuit using the same are provided. The integrated circuit includes a function pin coupled to an external setting unit, a switch unit, and first and second function adjustment circuits. The first function adjustment circuit includes first and second current sources. The second function adjustment circuit detects a percentage of a divided voltage at the function pin, to provide a reference value and to set a second function parameter. The first function adjustment circuit uses the first current source to detect a first voltage detecting value at the function pin, and compares the first voltage detecting value with a default value. The switch unit switches the first and second current sources according to a compare result. The present invention adopts an integrated circuit for switching a plurality of current sources and detections, and may determine more resistance value setting intervals.
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公开(公告)号：US09401701B1
公开(公告)日：2016-07-26
申请号：US14790008
申请日：2015-07-02
发明人： Kun-Min Huang
CPC分类号： H03K5/1565
摘要： A time signal generating circuit and a time signal generating method are provided. The time signal generating method includes following steps: getting a first phase signal and a second phase signal, wherein the first phase signal is related to a first phase current and the second phase signal is related to a second phase current; sampling and holding the first phase signal to generate a first signal and sampling and holding the second phase signal to generate a second signal; using an error amplifier to generate a balance signal according to the first signal and the second signal; and generating a time signal according to the balance signal. The present invention is capable of avoiding the imbalance of each phase current caused by the offset values between different elements in conventional technology.
摘要翻译： 提供时间信号发生电路和时间信号产生方法。 时间信号产生方法包括以下步骤：获得第一相位信号和第二相位信号，其中第一相位信号与第一相位电流相关，并且第二相位信号与第二相位电流相关; 采样并保持第一相位信号以产生第一信号并采样并保持第二相位信号以产生第二信号; 使用误差放大器根据第一信号和第二信号产生平衡信号; 并根据平衡信号产生时间信号。 本发明能够避免由常规技术中的不同元件之间的偏移值引起的每个相电流的不平衡。
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80.发明授权Integrated circuit with multi-functional parameter setting and multi-functional parameter setting method thereof 有权具有多功能参数设定的集成电路及其多功能参数设定方法公开(公告)号：US09104213B2
公开(公告)日：2015-08-11
申请号：US13798147
申请日：2013-03-13
发明人： Hung-Hsuan Cheng , Wei-Ling Chen
摘要： An integrated circuit with multi-functional parameter setting and a multi-functional parameter setting method thereof are provided. The multi-functional parameter setting method includes the following steps: providing the integrated circuit, wherein the integrated circuit includes a multi-functional pin and a switch unit, wherein the multi-functional pin is coupled to an external setting unit, and the switch unit includes an operational amplifier; sensing a programmable reference voltage of the external setting unit through one operation of the switch unit and executing a first function setting according to the programmable reference voltage; and sensing a programmable reference current related to the external setting unit through another operation of the switch unit and executing a second function setting according to the programmable reference current, wherein a value of the programmable reference current is related to the programmable reference voltage.
摘要翻译： 提供具有多功能参数设定的集成电路及其多功能参数设定方法。 多功能参数设定方法包括以下步骤：提供集成电路，其中所述集成电路包括多功能引脚和开关单元，其中所述多功能引脚耦合到外部设置单元，并且所述开关单元 包括运算放大器; 通过开关单元的一个操作来感测外部设置单元的可编程参考电压，并根据可编程参考电压执行第一功能设置; 以及通过所述开关单元的另一操作来感测与所述外部设置单元相关的可编程参考电流，并且根据所述可编程参考电流执行第二功能设置，其中所述可编程参考电流的值与所述可编程参考电压相关。
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