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公开(公告)号：US11977405B2
公开(公告)日：2024-05-07
申请号：US17596338
申请日：2021-05-31
发明人： Yohkoh Hirose , Kaoru Nakano
摘要： A reference voltage generator circuit includes a band gap reference voltage circuit that generates a predetermined reference voltage, and a first correction current generator circuit that generates a first correction current in response to change in temperature. The first correction current generator circuit generates a plurality of voltage peaks in response to the change in temperature in the output voltage of the reference voltage generator circuit by injecting the first correction current into the band gap reference voltage circuit, and output voltage characteristics configuring each of the plurality of voltage peaks are made such that the output voltage varies continuously with respect to the change in temperature. The first correction current generator circuit includes a temperature setting circuit that can change the plurality of temperatures corresponding to each of the plurality of voltage peaks.
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公开(公告)号：US11966245B2
公开(公告)日：2024-04-23
申请号：US17389580
申请日：2021-07-30
发明人： Zhen-Juan Cheng , Jing-Kai Zhang , Jin-Cheng Tian , Xin-Xi Jiang
摘要： The present disclosure provides a voltage reference source circuit for generating a reference voltage, the voltage reference source circuit comprises a starting circuit, a current generating circuit, and an output voltage reference circuit electrically connected in sequence. The starting circuit provides a starting voltage for the voltage reference source circuit to prevent the voltage reference source circuit from operating in zero state area. The current generating circuit generates a working current for the output voltage reference circuit; and the output voltage reference circuit is used to realize the reference voltage output with zero temperature coefficient according to the working current output by the current generating circuit. A low power consumption power supply system is also disclosed. The voltage reference source circuit and the low power consumption power supply system with the voltage reference source circuit have simple circuit structure, strong anti-noise ability, high stability and high performance.
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公开(公告)号：US11949417B2
公开(公告)日：2024-04-02
申请号：US17838029
申请日：2022-06-10
摘要： Trimming components within an oscillator comprising: a trim-capable current source, wherein the trim-capable current source comprises a trimmable resistor and a trimmable current component, a comparator comprising a first input terminal that couples to the trim-capable current source and the second input terminal that couples to a reference voltage source, a switch coupled to the first input terminal and the trim-capable current source, and a trim-capable capacitor coupled to the switch, wherein the switch is coupled between the trim-capable capacitor and the trim-capable current source.
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公开(公告)号：US11894850B1
公开(公告)日：2024-02-06
申请号：US18180018
申请日：2023-03-07
发明人： Xinxin Zhang , Jianyong Qin
CPC分类号： H03K5/01 , G05F1/567 , H03K2005/00019
摘要： The present disclosure provides a delay circuit and a semiconductor device. The delay circuit includes a delay unit and a linear voltage regulator unit; wherein, the delay unit includes an inverting unit and a power supply control unit, and the inverting unit includes an inverting unit and a power supply control unit. The inversion unit receives an input signal and delays the input signal, and the power supply control unit is used for providing a voltage to the inverting unit according to the power supply control signal; the linear voltage stabilization unit is coupled to the delay unit and outputting the power supply control signal according to a reference voltage. The voltage outputs the power control signal. The present disclosure can accurately control the delay time of the delay unit and improve the delay precision of the delay circuit.
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公开(公告)号：US11892862B2
公开(公告)日：2024-02-06
申请号：US17461585
申请日：2021-08-30
发明人： Tatsuya Matano
CPC分类号： G05F1/468 , G05F1/567 , H03K17/145
摘要： Disclosed herein is an apparatus that includes a first reference voltage generator configured to generate a first voltage, a second reference voltage generator configured to generate a second voltage, a detection circuit configured to compare the first voltage with the second voltage to generate a selection signal, and a selection circuit configured to select one of the first and second voltages responsive to the selection signal. The detection circuit is configured to have a hysteresis property in changing a state of the selection signal.
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公开(公告)号：US11789477B1
公开(公告)日：2023-10-17
申请号：US17901244
申请日：2022-09-01
申请人： Analog Devices, Inc.
摘要： Aspects of the present disclosure include a hybrid circuit, including a first current sink configured to sink a zero temperature coefficient (ZTC) current, a second current sink configured to sink a positive temperature coefficient (PTC) current, a first transistor configured to provide a first current, a second transistor configured to provide a second current, a third transistor configured to provide a third current mirroring the ZTC current, a fourth transistor configured to provide a sum current of the first current and the third current, and a current mirror configured provide a hybrid current mirroring the sum current.
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公开(公告)号：US11755051B2
公开(公告)日：2023-09-12
申请号：US17873281
申请日：2022-07-26
发明人： Amit Kundu , Jaw-Juinn Horng
摘要： Systems and methods are provided for generating a temperature compensated reference voltage. A temperature compensation circuit may include a proportional-to-absolute temperature (PTAT) circuit, and a complementary-to-absolute temperature (CTAT) circuit, with the PTAT circuit and the CTAT circuit including at least one common metal-oxide-semiconductor field-effect transistor (MOSFET) and being configured to collectively generate a reference voltage in response to a regulated current input. The PTAT circuit may be configured to produce an increase in magnitude of the reference voltage with an increase of temperature, and the CTAT circuit may be configured to generated a decrease in magnitude of the reference voltage with the increase of temperature, wherein the increase in magnitude of the reference voltage produced by the PTAT circuit is at least partially offset by the decrease in magnitude of the reference voltage produced by the CTAT circuit.
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8.发明公开公开(公告)号：US20230205240A1
公开(公告)日：2023-06-29
申请号：US18170757
申请日：2023-02-17
发明人： Wangmiao Hu , Fangyu Zhang , Lijie Jiang , Chao Liu , Chiahsin Chang , Jinghai Zhou
摘要： A control circuit for a voltage regulator has an energy regulation circuit and a switching control circuit. The energy regulation circuit provides a regulation signal based on an output voltage, an output current, and a maximum energy reference. The maximum energy reference decreases with increasing of an ambient temperature and increases with decreasing of the ambient temperature. The switching control circuit provides a switching control signal based on the regulation signal to turn ON and turn OFF at least one switch of a plurality of switches of the voltage regulator, such that the output voltage and the output current satisfy a first relationship when the ambient temperature equals a first temperature value, and the output voltage and the output current satisfy a second relationship when the ambient temperature equals a second temperature value.
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9.发明授权公开(公告)号：US11671003B2
公开(公告)日：2023-06-06
申请号：US17521075
申请日：2021-11-08
发明人： Li-Qiang Hu , Shun-Gen Sun
CPC分类号： H02M1/327 , H02M3/04 , G05F1/567 , H02M3/1584
摘要： A multi-phase control circuit and a temperature balance control method thereof The temperature balance control method of the multi-phase control circuit includes the steps of: acquiring a first temperature signal reflecting a representative temperature among a plurality of power stages, then acquiring a plurality of second temperature signals reflecting a respective temperature of each of the plurality of power stages; and adjusting a pulse width and/or frequency of a pulse width modulation signal of at least one of the plurality of power stages according to a comparison result between the first temperature signal and the second temperature signal so as to balance the temperatures of the plurality of power stages.
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公开(公告)号：US11662754B2
公开(公告)日：2023-05-30
申请号：US17262096
申请日：2019-08-09
发明人： Hiroyuki Watanabe
摘要： A reference voltage circuit (1) includes a PTAT voltage generation circuit (20) that generates a voltage with a positive temperature coefficient, a CTAT voltage generation circuit (10) that generates a voltage with a negative temperature coefficient, and a temperature characteristic adjustment circuit (30) that generates a voltage for adjusting temperature characteristics. The reference voltage circuit outputs a reference voltage (VOUT) formed by calculation based on the output of the PTAT voltage generation circuit, output of the CTAT voltage generation circuit, and output of the temperature characteristic adjustment circuit.
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