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51.发明授权Electrical regulator apparatus including a zero temperature coefficient voltage reference circuit 失效电压调节器装置，包括零温度系数电压参考电路
公开(公告)号：US3617859A
公开(公告)日：1971-11-02
申请号：US3617859D
申请日：1970-03-23
发明人： DOBKIN ROBERT C , WIDLAR ROBERT J
CPC分类号： G05F3/30 , G05F1/567 , Y10S323/907
摘要： An integrated circuit regulator including a temperature stable constant voltage reference wherein the negative temperature coefficient of the base-to-emitter voltage a first transistor in conjunction with the positive temperature coefficient of the base-to-emitter voltage differential between two additional transistors operating at different current densities is used to achieve a zero temperature coefficient reference potential. The constant voltage reference is combined with a voltage follower and provides a source of constant current which is passed through an external variable resistance to develop a selectable and predictable adjustment voltage for driving the voltage follower so as to cause an unregulated input voltage applied thereto to be regulated at an output terminal.
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公开(公告)号：US12072722B2
公开(公告)日：2024-08-27
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：US11929755B2
公开(公告)日：2024-03-12
申请号：US17513984
申请日：2021-10-29
摘要： This description relates generally to piecewise temperature compensation. In an example, a circuit includes a knee code selector that can be configured to set a knee point temperature for a correction current responsive to a respective knee point temperature code of knee point temperature codes and a respective temperature sense signal of temperature sense signals. The circuit includes an output circuit that can be configured to provide the correction current responsive to the respective temperature sense signal and temperature voltages, and a trim digital to analog converter (DAC) that can be configured to provide a piecewise compensation current responsive to the correction current and a respective trim code of trim codes.
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公开(公告)号：US20240019884A1
公开(公告)日：2024-01-18
申请号：US17866539
申请日：2022-07-17
发明人： Chih-Hang Chang
IPC分类号： G05F1/567 , G05F1/46 , G11C11/4074
CPC分类号： G05F1/567 , G05F1/461 , G11C11/4074
摘要： A power voltage supply device, including a reference bias voltage generating circuit, a temperature compensation bias voltage generating circuit, a compensation voltage generator, and a voltage buffer, is provided. The reference bias voltage generating circuit generates a reference bias voltage. The temperature compensation bias voltage generating circuit generates a temperature compensation bias voltage that changes as temperature rises. The compensation voltage generator generates a first power voltage based on the reference bias voltage, and selectively boosts the first power voltage based on the temperature compensation bias voltage. An input terminal of the voltage buffer receives the first power voltage. The voltage buffer generates a second power voltage corresponding to the first power voltage to a load circuit.
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公开(公告)号：US20230367352A1
公开(公告)日：2023-11-16
申请号：US18359931
申请日：2023-07-27
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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57.发明公开公开(公告)号：US20230343399A1
公开(公告)日：2023-10-26
申请号：US17725109
申请日：2022-04-20
发明人： Ning Zhang , Ruxin Wei , Yongyong Wang , Wei Huang
CPC分类号： G11C16/30 , G11C16/0483 , G05F1/567 , H03K19/20
摘要： A voltage supply circuit includes a temperature compensation circuit and a voltage regulation circuit. The temperature compensation circuit includes a comparator circuit comparing a device temperature value with a reference value to output a comparison result, and a compensation controller circuit receiving the comparison result, a compensation value control signal, and a compensation enable signal, and outputting a voltage control signal according to the comparison result. The voltage regulation circuit receives the voltage control signal and provides a voltage output according to the control signal.
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公开(公告)号：US20230333587A1
公开(公告)日：2023-10-19
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：US11782469B1
公开(公告)日：2023-10-10
申请号：US18045478
申请日：2022-10-11
发明人： Chia-Tseng Chiang , Yi-Hsiang Juan
摘要： A reference signal generator having high order temperature compensation includes: first and second transistors generating a proportional to absolute temperature (PTAT) signal and at least one complementary to absolute temperature (CTAT) signal according to at least one bandgap related to the first and second transistors; a feedback network coupled to the first and second transistors; an amplifier circuit configured to linearly superimpose the PTAT signal and the CTAT signals via the feedback network, to generate a reference signal; a second order adjustment circuit including a third transistor controlled by a bias voltage, to generate an adjustment current for adjusting the reference signal; and a third order adjustment circuit configured to adjust the bias voltage according to a temperature under test, for adjusting the adjustment current, to adjust the reference signal, such that a variation of the reference signal is smaller than a predetermined variation range within a temperature range.
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公开(公告)号：US11567520B2
公开(公告)日：2023-01-31
申请号：US17231176
申请日：2021-04-15
发明人： Weicheng Zhang , Jian Liang
摘要： A voltage converter includes an inductor, a transistor, a comparator, an error amplifier, and a slope generator circuit. The transistor has a control input and first and second transistor current terminals. The first current terminal is coupled to the inductor. The comparator has first and second comparator inputs and a comparator output. The comparator output is usable to control the transistor's control input. The error amplifier has an error amplifier input and an error amplifier output. The error amplifier output is coupled to the first comparator input. The slope generator circuit is coupled to at least one of the first or second comparator inputs. The slope generator circuit is configured to generate a slope compensation current which, during at least a portion of each cycle of operation of the voltage regulator, varies approximately exponentially with respect to time.
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