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公开(公告)号：US11188113B2
公开(公告)日：2021-11-30
申请号：US16820015
申请日：2020-03-16
发明人： Chang-Xian Wu , Chun-Ku Lin
摘要： A band gap reference voltage generating circuit includes a reference voltage generating circuit, a current generating circuit, a current divider circuit, and a first connection path switching circuit. The reference voltage generating circuit forms a reference voltage on first and second current input terminals thereof. First and second input terminals of the current generating circuit are connected to the first and second current input terminals, respectively. The current generating circuit generates a first current to bias the reference voltage generating circuit. The current divider circuit includes a current input terminal, a first current output terminal, and a second current output terminal. The first connection path switching circuit switches connection paths between the first input terminal and the second input terminal of the current generating circuit, and the first current input terminal and the second current input terminal of the current divider circuit.
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公开(公告)号：US11086347B1
公开(公告)日：2021-08-10
申请号：US17035720
申请日：2020-09-29
发明人： Xiaoqiang Shou
摘要： The present disclosure provides a bandgap reference circuit which includes a basic reference module to generate a basic reference voltage containing a first linear temperature-coefficient (TC) voltage and a first nonlinear TC voltage when a terminal node in the basic reference module is grounded. The bandgap reference circuit further includes a compensation module with an output node coupled to the terminal node of the basic reference module. The compensation module generates a compensation voltage at the output node with a second linear TC term and a second nonlinear TC term by using a first set of current sources proportional to absolute temperate (PTAT) and a second set of current sources with TC of zero. And the bandgap reference circuit combines the basic reference voltage and the compensation voltage, cancelling all the linear and nonlinear terms, and thus create a composite reference voltage independent of temperature.
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公开(公告)号：US11048285B2
公开(公告)日：2021-06-29
申请号：US16903365
申请日：2020-06-16
发明人： Hwey-Ching Chien
摘要： A reference voltage generation circuit includes a supply voltage terminal, a node, a current source, an output terminal, a common voltage terminal, a bandgap reference circuit and a feedback circuit. The supply voltage terminal is used to provide a supply voltage. The current source is coupled between the supply voltage terminal and the node, and used to receive the supply voltage and generate a current according to a feedback signal, and output the current to establish at the node a first voltage substantially insensitive to the supply voltage. The common voltage terminal is used to provide a common voltage. The bandgap reference circuit is coupled between the node and the common voltage terminal, and used to establish a temperature-invariant bandgap voltage at the output terminal. The feedback circuit is coupled to the node and the current source, and used to generate the feedback signal according to the first voltage.
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公开(公告)号：US11042177B2
公开(公告)日：2021-06-22
申请号：US16903032
申请日：2020-06-16
申请人： ABLIC Inc.
发明人： Yusuke Kanazawa , Yoichi Suto
摘要： A voltage-current conversion circuit includes a voltage-current conversion resistor connected to an input terminal, and a current mirror circuit which mirrors a current supplied from the voltage-current conversion resistor, wherein the current mirror circuit is constructed to include a depletion-type transistor whose source voltage is biased to be higher than the substrate voltage.
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公开(公告)号：US11003202B2
公开(公告)日：2021-05-11
申请号：US16808806
申请日：2020-03-04
发明人： Soheil Golara
摘要： A PMOS-output LDO with full spectrum PSR is disclosed. In one implementation, a LDO includes a pass transistor (MO) having a source coupled to an input voltage (Vin); a noise cancelling transistor (MD) having a source coupled to the Vin, a gate coupled to a drain and a gate of the pass transistor; a source follower transistor (MSF) having a source coupled to a drain of the pass transistor, a drain coupled to the drain and gate of the noise cancelling transistor; a current sink coupled between the drain of the source follower transistor and ground; and an error amplifier having an output to drive the gate of the source follower transistor.
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公开(公告)号：US10862468B1
公开(公告)日：2020-12-08
申请号：US16808579
申请日：2020-03-04
发明人： Chien-Wen Chen
摘要： A delay circuit includes an inverting receiving circuit, a reference point generating circuit, a first buffer gate and a first inverter. An inverting receiving circuit includes a first transistor and a first switching circuit. The reference point generating circuit includes a compensation resistor, a capacitor element, and a first current source. In response to the input signal being at a first potential, a voltage of the output node starts to decrease from a voltage reference point. In response to at least one of a manufacturing process, the first reference voltage, and a temperature being changed, the compensation resistor is configured to correct the voltage reference point.
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公开(公告)号：US10803931B2
公开(公告)日：2020-10-13
申请号：US16581838
申请日：2019-09-25
发明人： Yu-Shan Chien
IPC分类号： G11C16/06 , G11C11/56 , G11C5/14 , G11C16/30 , G11C16/24 , G11C16/28 , G11C16/08 , G11C16/04 , G11C16/10 , G11C16/26 , G11C16/34 , G05F3/30 , G05F3/22 , G11C16/14 , H01L27/02 , H01L27/11524
摘要： A non-volatile memory includes a memory array, a selecting circuit, a reference current generator and a sensing circuit. The memory array includes a top main array, a top corresponding array, a bottom main array and a bottom corresponding array. The top main array includes plural top bit lines. The top corresponding array includes plural inverted top bit lines. The bottom main array includes plural bottom bit lines. The bottom corresponding array includes plural inverted bottom bit lines. The selecting circuit is connected with the top main array, the top corresponding array, the bottom main array and the bottom corresponding array. The reference current generator and the sensing circuit are connected with the selecting circuit.
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公开(公告)号：US10671109B2
公开(公告)日：2020-06-02
申请号：US16020983
申请日：2018-06-27
申请人： Vidatronic Inc.
发明人： Sameh Assem Ibrahim , Anand Veeravalli Raghupathy , Mostafa Mohamed Hesham Kamel Toubar , Moises Emanuel Robinson
摘要： A bandgap reference circuit includes a circuit for high-order temperature curvature compensation; and a circuit for low output impedance and current drive capability, wherein an output voltage of the bandgap reference circuit can be independently adjusted to be either above or below a silicon bandgap voltage without impacting temperature curvature.
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公开(公告)号：US20190129461A1
公开(公告)日：2019-05-02
申请号：US16173814
申请日：2018-10-29
发明人： Yasuhiko SONE
摘要： Bandgap reference circuitry comprises a first current mirror connected to a power supply line and configured to supply a first current to a first node and a second current to a second node virtually-shorted to the first node, a first pn junction element between the first node and a ground line; a first variable resistor element between the second node and the ground line, and a second pn junction element connected in series to the first variable resistor element. The first variable resistor element has a resistance dependent on a power supply voltage supplied to the power supply line.
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公开(公告)号：US20190101948A1
公开(公告)日：2019-04-04
申请号：US15721521
申请日：2017-09-29
申请人： Intel Corporation
发明人： Matthias EBERLEIN
摘要： An apparatus comprising: a first supply node; a second supply node; a first transistor coupled to the first supply node, the first transistor is to provide a first current which is complementary to absolute temperature (CTAT); a second transistor coupled to the first supply node, the second transistor is to provide a second current which is proportional to absolute temperature (PTAT); a resistive device coupled in series at a node with the first and second transistors, and coupled to the second supply node, wherein the node is to sum the CTAT and the PTAT currents.
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