Touch pad driving device and touch driving method

    公开(公告)号:US10890989B1

    公开(公告)日:2021-01-12

    申请号:US16595442

    申请日:2019-10-07

    IPC分类号: G06F3/0354 G06F3/041

    摘要: A touch pad driving device and a touch driving method are provided. The touch pad driving device is configured to scan a plurality of sensing channels of a touch pad, cause the selected sensing channel in the plurality of sensing channels receive a touch driving signal, cause the sensing channels adjacent to or around the selected sensing channel receive a shielding signal, and cause the remaining sensing channels receive a reference signal, so as to reduce electromagnetic interference generated by the touch pad.

    TOUCH PAD DRIVING DEVICE AND TOUCH DRIVING METHOD

    公开(公告)号:US20210018999A1

    公开(公告)日:2021-01-21

    申请号:US16595442

    申请日:2019-10-07

    IPC分类号: G06F3/0354 G06F3/041

    摘要: A touch pad driving device and a touch driving method are provided. The touch pad driving device is configured to scan a plurality of sensing channels of a touch pad, cause the selected sensing channel in the plurality of sensing channels receive a touch driving signal, cause the sensing channels adjacent to or around the selected sensing channel receive a shielding signal, and cause the remaining sensing channels receive a reference signal, so as to reduce electromagnetic interference generated by the touch pad.

    Gate driving circuit for providing high driving voltage

    公开(公告)号:US10826493B1

    公开(公告)日:2020-11-03

    申请号:US16856038

    申请日:2020-04-23

    IPC分类号: H03K17/687 G09G3/36

    摘要: A gate driving circuit for providing a high driving voltage includes a first N-type high-voltage transistor and a second N-type high-voltage transistor connected in series between a driving voltage output node and a system low-voltage source. A voltage difference between a system high-voltage source and the system low-voltage source is greater than a withstand voltage of the first or second N-type high-voltage transistor. When the driving voltage output node is to output a system high voltage, the first N-type high-voltage transistor and the second N-type high-voltage transistor are turned off. Deep N-type well regions of the first N-type high-voltage transistor and the second N-type high-voltage transistor are applied with a first bias voltage. A voltage difference between the first bias voltage and the system low-voltage source is smaller than an interface breakdown voltage between the deep N-type well region and a P-type well region of the second N-type high-voltage transistor.

    POWER CONVERTOR AND CURRENT DETECTION APPARATUS THEREOF
    4.
    发明申请
    POWER CONVERTOR AND CURRENT DETECTION APPARATUS THEREOF 审中-公开
    功率转换器及其电流检测装置

    公开(公告)号:US20100019750A1

    公开(公告)日:2010-01-28

    申请号:US12236511

    申请日:2008-09-24

    IPC分类号: G05F1/10

    CPC分类号: H02J1/06 H02M2001/0009

    摘要: A current detection apparatus including a current detection circuit, a voltage regulation power supply circuit, and a package carrier is disclosed. The current detection circuit has a reference terminal and a detection terminal. The voltage regulation power supply circuit is used to generate an output voltage and includes a current transmission terminal for transmitting a current. The package carrier is used to carry the current detection circuit, the voltage regulation power supply circuit, a reference pad, and a current transmission pad. The package carrier includes at least one common voltage lead. The current transmission pad is coupled to the reference pad through at least one bonding wire such that an equivalent resistance is formed on the coupling path between the current transmission pad and the reference pad.

    摘要翻译: 公开了一种包括电流检测电路,电压调节电源电路和封装载体的电流检测装置。 电流检测电路具有基准端子和检测端子。 电压调节电源电路用于产生输出电压,并且包括用于发送电流的电流传输端子。 封装载体用于承载电流检测电路,电压调节电源电路,参考焊盘和电流传输焊盘。 封装载体包括至少一个公共电压引线。 当前传输焊盘通过至少一个接合线耦合到参考焊盘,使得在当前传输焊盘和参考焊盘之间的耦合路径上形成等效的电阻。

    Voltage generation device and voltage generation method

    公开(公告)号:US11429124B1

    公开(公告)日:2022-08-30

    申请号:US17517690

    申请日:2021-11-03

    IPC分类号: G05F1/10 G05F1/44

    摘要: A voltage generation device and a voltage generation method are provided. The voltage generation device includes a first voltage generator, a second voltage generator, a third voltage generator and an output voltage generator. The first to third voltage generators respectively generate first to third voltages. The output voltage generator generates an output voltage at an output end according to the first voltage, the second voltage and the third voltage. When the output voltage is converted between the first voltage and the second voltage, during a first time period, the first voltage generator provides the first voltage to a first capacitor, and the third voltage generator causes the output voltage to change from the second voltage to the third voltage. During a second time period, the first voltage generator and the first capacitor cause the output voltage to change from the third voltage to the first voltage.

    TEMPERATURE SENSING DEVICE OF INTEGRATED CIRCUIT

    公开(公告)号:US20210318175A1

    公开(公告)日:2021-10-14

    申请号:US16904579

    申请日:2020-06-18

    IPC分类号: G01K7/01 G01K7/20 G01K1/18

    摘要: The invention provides a temperature sensing device of an integrated circuit. The integrated circuit includes a plurality of stacked metal wire layers, and the temperature sensing device includes a first metal sheet, a first via and a second via. The first metal sheet is disposed between the first metal wire layer and the second metal wire layer of the metal wire layers. The first via and the second via are used to connect the first metal sheet and the first metal wire layer, wherein a temperature sensing signal enters the first metal sheet through the first via and leaves the first metal sheet through the second via to measure the temperature of the integrated circuit.

    Constant-current driving circuit
    7.
    发明授权
    Constant-current driving circuit 有权
    恒流驱动电路

    公开(公告)号:US07961158B2

    公开(公告)日:2011-06-14

    申请号:US11781969

    申请日:2007-07-24

    IPC分类号: G09G3/32

    摘要: A constant-current driving circuit includes a first current source, a reference voltage generating circuit and an output signal generating circuit. A terminal of the first current source is coupled to a terminal of a first LED string, wherein the terminal of the first current source has a first voltage. The reference voltage generating circuit is used for generating a reference voltage and comparing the first voltage with a first predetermined voltage to generate a first comparing signal to thereby adjust the reference voltage. The output signal generating circuit is used for outputting an output signal to another terminal of the first LED string and receiving the input signal, wherein the output signal generating circuit decides whether or not to output the input signal serving as the output signal according to the comparison result of the reference voltage with the second voltage.

    摘要翻译: 恒流驱动电路包括第一电流源,参考电压产生电路和输出信号发生电路。 第一电流源的端子耦合到第一LED串的端子,其中第一电流源的端子具有第一电压。 参考电压产生电路用于产生参考电压并将第一电压与第一预定电压进行比较以产生第一比较信号从而调节参考电压。 输出信号发生电路用于将输出信号输出到第一LED串的另一个端子并接收输入信号,其中输出信号发生电路根据比较决定是否输出用作输出信号的输入信号 参考电压与第二电压的结果。

    VOLTAGE CONVERTING APPARATUS
    8.
    发明申请
    VOLTAGE CONVERTING APPARATUS 审中-公开
    电压转换装置

    公开(公告)号:US20110127985A1

    公开(公告)日:2011-06-02

    申请号:US12725465

    申请日:2010-03-17

    IPC分类号: G05F1/10

    CPC分类号: H02M3/156 H02M1/44

    摘要: A voltage converting apparatus is disclosed. The voltage converting apparatus mentioned above includes an error comparator. The error comparator receives a feedback voltage and a reference voltage and generates a control signal according to the feedback voltage and the reference voltage. Moreover, the error comparator includes a differential pair, a first current source, and an offset voltage controlling circuit. The offset voltage controlling circuit receives a ramp enabling signal and adjusts a bias current flowing through at least one of a first and a second output terminal of the differential pair according to the ramp enabling signal.

    摘要翻译: 公开了电压转换装置。 上述电压转换装置包括误差比较器。 误差比较器接收反馈电压和参考电压,并根据反馈电压和参考电压产生控制信号。 此外,误差比较器包括差分对,第一电流源和偏移电压控制电路。 偏移电压控制电路接收斜坡使能信号并且根据斜坡使能信号来调节流过差分对的第一和第二输出端中的至少一个的偏置电流。

    CURRENT SENSING CIRCUIT AND POWER SUPPLY USING THE SAME
    9.
    发明申请
    CURRENT SENSING CIRCUIT AND POWER SUPPLY USING THE SAME 审中-公开
    电流感应电路和使用该电路的电源

    公开(公告)号:US20080164856A1

    公开(公告)日:2008-07-10

    申请号:US11682881

    申请日:2007-03-07

    IPC分类号: G05F1/573

    摘要: A current sensing circuit and power supply using the same are provided. The current sensing circuit includes a transistor, a control circuit and a sensing circuit, wherein the voltage endurance capability between a drain terminal of the transistor and a gate of the transistor is larger than the voltage endurance capability between a source terminal of the transistor and the gate of the transistor. The drain terminal is coupled to an under testing current source with an external high voltage. The control circuit is coupled to the gate of the transistor to control the conduction between the drain and the source terminals. The sensing circuit receives a sensing current signal from the source terminal of the transistor and transfers thereof to be a current sensing voltage.

    摘要翻译: 提供电流检测电路和使用其的电源。 电流感测电路包括晶体管,控制电路和感测电路,其中晶体管的漏极端子和晶体管的栅极之间的耐压能力大于晶体管的源极端子与晶体管的栅极之间的耐压能力 晶体管的栅极。 漏极端子与外部高电压耦合到欠测试电流源。 控制电路耦合到晶体管的栅极以控制漏极和源极端子之间的导通。 感测电路从晶体管的源极端子接收感测电流信号,并将其传送为电流感测电压。

    Multiple output stage converter and operating method thereof
    10.
    发明授权
    Multiple output stage converter and operating method thereof 有权
    多输出级转换器及其操作方法

    公开(公告)号:US07365522B2

    公开(公告)日:2008-04-29

    申请号:US11532909

    申请日:2006-09-19

    IPC分类号: G05F1/577

    摘要: A multiple output stage converter (MOSC) and an operating method thereof are provided. The MOSC includes a first transistor, a second transistor, a third transistor, and a logic control module. A terminal of the first transistor, a terminal of the second transistor, and a terminal of the third transistor are coupled to a power source via an inductor. Another terminal of the first transistor is coupled to a first output terminal. Another terminal of the second transistor is coupled to a second output terminal. Another terminal of the third transistor is coupled to a ground voltage. The logic control module is used to control the on/off state of the second transistor. The well of the second transistor is floating when the first transistor or the third transistor is on. The well of the second transistor is floated or coupled to the second output terminal when the second transistor is on.

    摘要翻译: 提供了多输出级转换器(MOSC)及其操作方法。 MOSC包括第一晶体管,第二晶体管,第三晶体管和逻辑控制模块。 第一晶体管的端子,第二晶体管的端子和第三晶体管的端子经由电感器耦合到电源。 第一晶体管的另一端子耦合到第一输出端子。 第二晶体管的另一个端子耦合到第二输出端子。 第三晶体管的另一个端子耦合到接地电压。 逻辑控制模块用于控制第二晶体管的导通/截止状态。 当第一晶体管或第三晶体管导通时,第二晶体管的阱是浮置的。 当第二晶体管导通时,第二晶体管的阱浮置或耦合到第二输出端。