Apparatuses and methods for providing constant current

    公开(公告)号:US10459466B2

    公开(公告)日:2019-10-29

    申请号:US16000220

    申请日:2018-06-05

    Inventor: Wei Lu Chu Dong Pan

    Abstract: An apparatus is described comprising a bandgap reference circuit comprising: an amplifier including first and second inputs and an output; and a bandgap transistor coupled to the output of the amplifier at a control electrode thereof, the bandgap transistor being further coupled commonly to the first and second inputs of the amplifier at a first electrode thereof to form a feedback path. The apparatus further comprises a resistor coupled to the first electrode of the bandgap transistor.

    Method and apparatus for reducing impact of transistor random mismatch in circuits

    公开(公告)号:US10320371B2

    公开(公告)日:2019-06-11

    申请号:US16121237

    申请日:2018-09-04

    Abstract: An analog circuit including a pair of input nodes and a pair of output nodes is coupled to a mismatch reduction circuit including an input node, an output node, a phase controller that times even and odd phases, an input switch, and an output switch. The input switch electrically connects the mismatch reduction circuit input node to a first node of the pair of analog circuit input nodes during each even phase and to electrically connects the mismatch reduction circuit input node to a second node of the pair of analog circuit input nodes during each odd phase. The output switch electrically connects a first node of the pair of analog circuit output nodes to the mismatch reduction circuit output node during each even phase and electrically connects a second node of the pair of analog circuit output nodes to the mismatch reduction circuit output node during each odd phase.

    Apparatuses and methods for providing reference voltages

    公开(公告)号:US10168724B2

    公开(公告)日:2019-01-01

    申请号:US14777854

    申请日:2015-06-15

    Inventor: Jun Wu Dong Pan

    Abstract: A reference voltage generator is disclosed that may provide a plurality of reference voltages. A reference voltage generator may include a voltage divider, a multiplexer coupled to the voltage divider, an operational amplifier that may receive a voltage from the multiplexer, and a plurality of resistors that may receive an output from the operational amplifier. The reference voltages may be provided from output terminals coupled to the resistors. A reference voltage generator may include a voltage divider, two multiplexers coupled to the voltage divider, an operational amplifier coupled to each multiplexer, and a plurality of resistors coupled between the outputs of the two operational amplifiers. Reference voltages may be provided from output terminals coupled to the resistors.

    SYSTEMS AND APPARATUSES FOR A CONFIGURABLE TEMPERATURE DEPENDENT REFERENCE VOLTAGE GENERATOR

    公开(公告)号:US20180314279A1

    公开(公告)日:2018-11-01

    申请号:US16020510

    申请日:2018-06-27

    CPC classification number: G05F1/463 G05F1/465

    Abstract: Systems and apparatuses for a configurable, temperature dependent reference voltage generator are provided. An example apparatus includes control logic configured receive temperature data, and produce a signal, based on the temperature data, indicative of the temperature data, a temperature dependence and a temperature slope. The apparatus may also include a temperature slope reference generator configured to produce a reference voltage having the temperature dependence and the temperature slope, based on the signal from the control logic.

    Systems and apparatuses for a configurable temperature dependent reference voltage generator

    公开(公告)号:US10037045B2

    公开(公告)日:2018-07-31

    申请号:US15283605

    申请日:2016-10-03

    CPC classification number: G05F1/463 G05F1/465

    Abstract: Systems and apparatuses for a configurable, temperature dependent reference voltage generator are provided. An example apparatus includes control logic configured receive temperature data, and produce a signal, based on the temperature data, indicative of the temperature data, a temperature dependence and a temperature slope. The apparatus may also include a temperature slope reference generator configured to produce a reference voltage having the temperature dependence and the temperature slope, based on the signal from the control logic.

    CHARGE PUMPS AND METHODS OF OPERATING CHARGE PUMPS

    公开(公告)号:US20180212516A1

    公开(公告)日:2018-07-26

    申请号:US15927150

    申请日:2018-03-21

    Inventor: Ming H. Li Dong Pan

    CPC classification number: H02M3/073 H02M2001/0041

    Abstract: Methods of operating a charge pump, and charge pumps configured to perform similar methods, involve monitoring a level of a supply voltage of the charge pump, and turning off an oscillator of the charge pump responsive to the level of the supply voltage dropping below a certain level, wherein turning off the oscillator comprises setting an inverter in a ring oscillator loop of the oscillator to a steady state output.

    Charge pump
    97.
    发明授权

    公开(公告)号:US09954437B2

    公开(公告)日:2018-04-24

    申请号:US14193109

    申请日:2014-02-28

    Inventor: Ming H. Li Dong Pan

    CPC classification number: H02M3/073 H02M2001/0041

    Abstract: One charge pump includes at least one delay element, a number of inverters, and a flip flop coupled in series, with an output of one inverter coupled in a feedback loop to one of the delay elements. The charge pump monitors a first supply voltage level, and turns off an oscillator of the charge pump when the first supply voltage drops below a certain level. This is accomplished in one embodiment by monitoring a first supply voltage level supplied to a charge pump, and turning off an oscillator of the charge pump when the first supply voltage drops below a certain level.

    APPARATUSES AND METHODS FOR PROVIDING REFERENCE VOLTAGES
    98.
    发明申请
    APPARATUSES AND METHODS FOR PROVIDING REFERENCE VOLTAGES 审中-公开
    提供参考电压的装置和方法

    公开(公告)号:US20170017252A1

    公开(公告)日:2017-01-19

    申请号:US14777854

    申请日:2015-06-15

    Inventor: Jun Wu Dong Pan

    Abstract: A reference voltage generator is disclosed that may provide a plurality of reference voltages. A reference voltage generator may include a voltage divider, a multiplexer coupled to the voltage divider, an operational amplifier that may receive a voltage from the multiplexer, and a plurality of resistors that may receive an output from the operational amplifier. The reference voltages may be provided from output terminals coupled to the resistors. A reference voltage generator may include a voltage divider, two multiplexers coupled. to the voltage divider, an operational amplifier coupled to each multiplexer, and a plurality of resistors coupled between the outputs of the two operational amplifiers. Reference voltages may be provided from output terminals coupled to the resistors.

    Abstract translation: 公开了可以提供多个参考电压的参考电压发生器。 参考电压发生器可以包括分压器,耦合到分压器的多路复用器,可以从多路复用器接收电压的运算放大器以及可以从运算放大器接收输出的多个电阻器。 可以从耦合到电阻器的输出端子提供参考电压。 参考电压发生器可以包括分压器,耦合的两个多路复用器。 耦合到分压器,耦合到每个多路复用器的运算放大器以及耦合在两个运算放大器的输出之间的多个电阻器。 可以从耦合到电阻器的输出端子提供参考电压。

    Circuits, apparatuses, and methods for oscillators
    99.
    发明授权
    Circuits, apparatuses, and methods for oscillators 有权
    振荡器的电路,装置和方法

    公开(公告)号:US09171599B2

    公开(公告)日:2015-10-27

    申请号:US14444762

    申请日:2014-07-28

    Inventor: Ming H. Li Dong Pan

    Abstract: Circuits, apparatuses, and methods are disclosed for oscillators. In one such example oscillator circuit, a plurality of delay stages are coupled in series. A variable delay circuit stage is coupled to the plurality of delay stages and is configured to delay a signal through the variable delay circuit stage by a variable delay. The variable delay increases responsive to a rising magnitude of a supply voltage provided to the variable delay circuit stage.

    Abstract translation: 公开了用于振荡器的电路,装置和方法。 在一个这样的示例性振荡器电路中,多个延迟级串联耦合。 可变延迟电路级耦合到多个延迟级,并且被配置为将可变延迟电路级的信号延迟可变延迟。 响应于提供给可变延迟电路级的电源电压的上升幅度,可变延迟增加。

    CHARGE PUMP INCLUDING SUPPLY VOLTAGE-BASED CONTROL SIGNAL LEVEL
    100.
    发明申请
    CHARGE PUMP INCLUDING SUPPLY VOLTAGE-BASED CONTROL SIGNAL LEVEL 有权
    充电泵包括基于供电电压的控制信号电平

    公开(公告)号:US20150042398A1

    公开(公告)日:2015-02-12

    申请号:US13962596

    申请日:2013-08-08

    CPC classification number: H02M3/07

    Abstract: Some embodiments include apparatuses and methods having an input node to receive a first voltage, an output node to provide an output voltage, and a charge pump to generate the output voltage based on the first voltage. The charge pump can include a control node to receive a control signal for controlling at least one switch of the charge pump, such that the output voltage includes a value greater than a value of the first voltage. The control signal can include a level corresponding to a second voltage having a value greater than the value of the output voltage. Additional apparatus and methods are described.

    Abstract translation: 一些实施例包括具有用于接收第一电压的输入节点,提供输出电压的输出节点和电荷泵以根据第一电压产生输出电压的装置和方法。 电荷泵可以包括控制节点,以接收用于控制电荷泵的至少一个开关的控制信号,使得输出电压包括大于第一电压值的值。 控制信号可以包括对应于具有大于输出电压值的值的第二电压的电平。 描述附加的装置和方法。

Patent Agency Ranking