WO2020077893A1 - 显示器及其感温调控模块 - Google Patents

显示器及其感温调控模块 Download PDF

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Publication number
WO2020077893A1
WO2020077893A1 PCT/CN2019/070577 CN2019070577W WO2020077893A1 WO 2020077893 A1 WO2020077893 A1 WO 2020077893A1 CN 2019070577 W CN2019070577 W CN 2019070577W WO 2020077893 A1 WO2020077893 A1 WO 2020077893A1
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Prior art keywords
temperature
sensing
terminal
voltage
comparators
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English (en)
French (fr)
Inventor
张先明
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Publication of WO2020077893A1 publication Critical patent/WO2020077893A1/zh
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers

Definitions

  • the invention relates to a temperature-sensing regulation module, in particular to a temperature-sensing regulation module and a display which are applied to the temperature-sensing regulation needs of electric appliances.
  • the operating current required by the TV becomes larger and larger.
  • the integrated circuits (ICs) used in current TV drive circuits have certain operating temperature limits, for example, the temperature limit required by a pulse width modulation integrated circuit (PWM IC) is 150 ° C.
  • the limited temperature range that can be used has basically reached the limit, for example: the maximum operating temperature marked in the specification is only 45 ° C. This will cause the TV's operating temperature to be limited, especially in environments with poor ventilation, poor heat dissipation, or outdoor exposure, which can easily trigger the One Time Programmable (OTP) temperature protection mechanism, resulting in The TV stopped working and could not be watched.
  • OTP One Time Programmable
  • the present invention provides a display and its temperature-sensing regulation module, which can improve the adverse effect of the increase in ambient temperature on the operation of the display to improve the stability of the display.
  • An aspect of the present invention provides a temperature-sensing regulation module, which includes: a temperature-controlled voltage divider having a current-limiting element and a temperature-sensing element, the current-limiting element and the temperature-sensing element being connected in series to a high voltage Between the terminal and a low-voltage terminal, and forming a series of contacts; and a converter with several comparators, each of which has a first input terminal, a second input terminal and an output terminal, The first input terminal is coupled to the serial connection point, and the second input terminals of the plurality of comparators receive a plurality of different reference values, the plurality of reference values are greater than zero, and the plurality of comparators are based on A partial pressure value of the serial connection point is compared with the several reference values to output a comparison result at the output terminal; wherein, the several reference values are sequentially increased or decreased in proportion; the current limit
  • the element is a resistor
  • the temperature sensing element is a thermistor or a thermocouple.
  • the temperature sensing element is a negative temperature coefficient thermistor, and the temperature sensing element is coupled between the current limiting element and the low voltage end.
  • the temperature sensing element is a positive temperature coefficient thermistor, and the temperature sensing element is coupled between the high voltage end and the current limiting element.
  • the second input terminals of the comparators are respectively coupled to a reference terminal, and the second input terminals of the comparators respectively receive the data from the reference terminal.
  • One of the reference values are respectively coupled to a reference terminal, and the second input terminals of the comparators respectively receive the data from the reference terminal.
  • the high-voltage terminal is coupled to a positive DC voltage terminal, and the low-voltage terminal is grounded.
  • the several reference values are several positive voltages.
  • the output terminals of the comparators are coupled to a power management integrated circuit.
  • a temperature-sensing regulation module including: a temperature-controlled voltage divider having a current-limiting element and a temperature-sensing element, the current-limiting element and the temperature-sensing element being connected in series to a high voltage Between the terminal and a low-voltage terminal, and forming a series of contacts; and a converter with several comparators, each of which has a first input terminal, a second input terminal and an output terminal, The first input terminal is coupled to the serial connection point, and the second input terminals of the plurality of comparators receive a plurality of different reference values, the plurality of reference values are greater than zero, and the plurality of comparators are based on A voltage division value of the serial connection point is compared with the reference values to output a comparison result at the output terminal.
  • the current limiting element is a resistor
  • the temperature sensing element is a thermistor or a thermocouple.
  • the temperature sensing element is a negative temperature coefficient thermistor, and the temperature sensing element is coupled between the current limiting element and the low voltage end.
  • the temperature sensing element is a positive temperature coefficient thermistor, and the temperature sensing element is coupled between the high voltage end and the current limiting element.
  • the second input terminals of the comparators are respectively coupled to a reference terminal, and the second input terminals of the comparators respectively receive the data from the reference terminal.
  • One of the reference values are respectively coupled to a reference terminal, and the second input terminals of the comparators respectively receive the data from the reference terminal.
  • the several reference values are sequentially increased or decreased in proportion.
  • the high-voltage terminal is coupled to a positive DC voltage terminal, and the low-voltage terminal is grounded.
  • the several reference values are several positive voltages.
  • Another aspect of the present invention provides a display including the temperature-sensing regulation module as described above.
  • the display and the temperature-sensing control module of the present invention can generate several logic signal combinations in response to the temperature rise, so that the output voltage of the power management integrated circuit decreases with the temperature rise, avoiding excessive temperature of electronic components Raise to prevent electrical appliances (such as TVs and other monitors) from stopping operation or bring other safety risks.
  • FIG. 1 is a schematic circuit diagram of a temperature-sensing control module according to an embodiment of the invention.
  • a temperature-sensing control module may include a temperature-controlled voltage divider 1 and a converter 2.
  • the temperature-controlled voltage divider 1 may have a current-limiting element 11 and a sense Temperature element 12, the current limiting element 11 and the temperature sensing element 12 are connected in series between a high voltage end Va and a low voltage end Vb, and form a series connection point 13, the series connection point 13 is used to generate a partial voltage Value;
  • the converter 2 may have a number of comparators 21 (take 4 as an example, but not limited to this), each of the comparators 21 has a first input terminal 211, a second input Terminal 212 and an output terminal 213, the first input terminal 211 is coupled to the serial connection point 13, and the second input terminals 212 of the comparators 21-24 can be coupled to a parallel port for receiving A number of different reference values, the number of reference values is greater than zero; the number of comparators 21 is compared with the number of reference values according to the voltage division value from the serial connection point
  • the high-voltage terminal Va and the low-voltage terminal Vb may be used to provide a DC voltage difference to the temperature-controlled voltage divider 1, and the DC voltage difference may utilize the voltage at the high-voltage terminal Va It is generated higher than the voltage at the low voltage terminal Vb, for example: the high voltage terminal Va may be coupled to a positive DC voltage terminal VDD (such as a DC voltage of 3V), and the low voltage terminal Vb may be grounded; accordingly,
  • the several different reference values can be several positive integers or decimals greater than zero, for example: can be realized as several positive voltages V ref1 , V ref2 , V ref3 , V ref4 (take 4 as an example, but not as a Limit) said.
  • the current-limiting element 11 is an electronic component (such as a resistor) that can limit current
  • the temperature-sensing element 12 is an electronic component (such as a thermistor or thermoelectric) that can sense temperature Even so, but not limited to this)
  • the temperature sensing element 12 may be a negative temperature coefficient (NTC) thermistor
  • NTC negative temperature coefficient
  • the temperature sensing element 12 may be coupled to the current limiting element 11 and Between the low-voltage end Vb, when the temperature is higher, the resistance value of the temperature-sensing element 12 is smaller, and the voltage division value of the series connection point 13 is smaller, for example: for every 10 degrees rise (°C), the string The voltage division value of the contact 13 drops by 0.1V.
  • the temperature sensing element 12 may also be a positive temperature coefficient (PTC) thermistor, and the temperature sensing element 12 may be coupled between the high voltage terminal Va and the current limiting element 11 when The higher the temperature, the greater the resistance value of the temperature-sensing element 12 and the smaller the voltage division value of the series connection point 13, for example: for every 10 degrees rise, the voltage division value of the series connection point 13 decreases by 0.1V.
  • PTC positive temperature coefficient
  • the second input terminals 212 of the plurality of comparators 21 may be respectively coupled to a reference terminal (such as a DC voltage output terminal of a signal generator).
  • the two input terminals 212 each receive one of the reference values from the reference terminal; the reference values can also be sequentially decreased in equal proportions (eg, V ref1 > V ref2 > V ref3 > V ref4 ) or Increase in equal proportions (such as V ref1 ⁇ V ref2 ⁇ V ref3 ⁇ V ref4 ), but in some applications, the increasing or decreasing manner of the several reference values may not be in proportional.
  • V ref1 > V ref2 > V ref3 > V ref4 or Increase in equal proportions (such as V ref1 ⁇ V ref2 ⁇ V ref3 ⁇ V ref4 ), but in some applications, the increasing or decreasing manner of the several reference values may not be in proportional.
  • the following illustrates the working mode of the temperature-sensing control module, but not limited to this.
  • the temperature sensing element 12 is a negative temperature coefficient thermistor and is coupled to the current limiting element 11 and the low voltage terminal Vb
  • the second input terminal 212 of the comparators 21 can input the reference values V ref1 , V ref2 , V ref3 , V ref4 , the reference values V ref1 , V ref2 , V ref3 , V ref4 may be sequentially decreased in equal proportions (eg, V ref1 > V ref2 > V ref3 > V ref4 ), for example: according to a coupling between the second input terminal 212 of the plurality of comparators 21 and the reference terminal Sequence (as in Figure 1, from bottom to top); the output 213 of the several comparators 21 can also output the comparison result (for example: the combination of signals A, B, C, D) to a control Components such as a power management integrated circuit (PMIC) for a television.
  • PMIC power management integrated circuit
  • the voltage division value of the series connection point 13 When the ambient temperature is normal temperature, the voltage division value of the series connection point 13 will maintain a high voltage. For example, the voltage division value of the series connection point 13 is greater than the reference value (for example, positive voltage) V ref1 , V ref2 , V ref3 , V ref4 , the signals A, B, C, D of the comparison result are H, H, H, H, so that the output voltage of the PMIC is normal; if the ambient temperature continues to rise, such as the partial voltage of the serial connection point 13 If the value is greater than the positive voltages V ref2 , V ref3 , and V ref4 , the signals A, B, C, and D of the comparison result are L, H, H, and H, which can reduce the output voltage of the PMIC (eg, 1V).
  • the reference value for example, positive voltage
  • V ref1 , V ref2 , V ref3 , V ref4 the signals A, B, C, D of the comparison result are H, H, H, H,
  • the signals A, B, C, D of the comparison result will gradually change from L, H, H, H to L, L, H, H; L, L, L, H; L, L, L, L, L, therefore, according to the temperature from low to high, several (eg, 5) intervals of logical signal combinations can be generated, as the signals A, B, C, and D of the comparison result are L, L, L, L, the TV can be turned off directly through PMIC to avoid security risks.
  • the voltage divider value of the series connection point 13 may decrease (such as 0.1V), so that the PMIC voltage VAA decreases (such as 1V), and the temperature of the components in the TV It can basically be lowered (such as 10 degrees) to keep the temperature of the electronic components basically unchanged, so that each electronic component can still be kept within the OTP protection range, and enough margin is reserved. Therefore, by changing the logic signal combination of the temperature-sensing control module according to the temperature rise, the output voltage of the PMIC can be reduced as the temperature rises, avoiding excessive temperature rise of electronic components, and preventing electrical appliances (such as TVs and other displays) from stopping operation Or bring other security risks.
  • the several reference values can also be sequentially increased (such as V ref1 ⁇ V ref2 ⁇ V ref3 ⁇ V ref4 ) in order (such as from bottom to top in FIG. 1); when When the ambient temperature gradually increases, the signals A, B, C, D of the comparison result will gradually change from H, H, H, H H, H, H, L; H, H, L, L; H, L, L, L; L, L, L, L, at this time, by appropriately changing the connection mode between the output terminals 213 of the several comparators 21 and the PMIC (if the connection order is reversed), it can bring the above the benefits of.
  • Another aspect of the present invention includes a display, such as a TV or a liquid crystal display, etc., but not limited to this.
  • the display includes the temperature-sensing control module as described above, and its operation method has been described above, and will not be repeated.
  • the display and the temperature-sensing control module of the above embodiment of the present invention can generate a combination of several logic signals in response to the temperature rise, so that the output voltage of the power management integrated circuit decreases with increasing temperature, and avoids excessive temperature rise of the electronic components. Prevent electrical appliances (such as TVs and other monitors) from stopping or bringing other security risks.

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  • Engineering & Computer Science (AREA)
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  • Signal Processing (AREA)
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  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

一种显示器及其感温调控模块，所述感温调控模块包括一温控分压器及一转换器，所述温控分压器的一限流元件与一感温元件于一高压端与一低压端之间串接形成一串接点；所述转换器的数个比较器各别具有一第一输入端、一第二输入端及一输出端，所述第一输入端耦接所述串接点，所述数个比较器的第二输入端接收数个不同的参考值，所述数个参考值大于零，所述数个比较器依据来自所述串接点的一分压值与所述数个参考值进行比较以在所述输出端输出一比较结果。

Description

显示器及其感温调控模块 技术领域
本发明是有关于一种感温调控模块，特别是有关于一种应用于电器感温调控需求的感温调控模块及显示器。
 背景技术
对于大尺寸的显示器而言，以电视为例，由于电视的尺寸越大、解析度越高、刷新率越高，电视需要的工作电流越来越大。而且，由于目前的电视驱动线路所使用的集成电路(IC)都有一定的工作温度限制，例如：脉冲宽度调制集成电路(PWM IC)要求的温度限制为150℃。
在目前面板驱动设计中，能被使用的温度受限范围基本上已经达到极限，例如：在规格书中标注的最高工作温度仅为45℃。这将导致电视的可工作温度是受限的，特别是对于在通风不良、散热不好或户外暴晒等环境中，很容易触发一次性可编程(One Time Programmable，OTP)的温度保护机制，导致电视中止运作而无法观看。以往虽有一些电视温度调控技术试图解决上述问题，但仍有待改善。
因此，现有技术存在缺陷，急需改进。
 技术问题
本发明提供一种显示器及其感温调控模块，可以改善环境温度升高对显示器工作的不良影响，以提高显示器工作稳定性。
 技术解决方案
本发明的一方面提供一种感温调控模块，其包括：一温控分压器，具有一限流元件及一感温元件，所述限流元件与所述感温元件串接于一高压端与一低压端之间，并形成一串接点；及一转换器，具有数个比较器，所述数个比较器各别具有一第一输入端、一第二输入端及一输出端，所述第一输入端耦接所述串接点，所述数个比较器的第二输入端接收数个不同的参考值，所述数个参考值大于零，所述数个比较器依据来自所述串接点的一分压值与所述数个参考值进行比较以在所述输出端输出一比较结果；其中，所述数个参考值依序等比例递增或等比例递减；所述限流元件为一电阻器，所述感温元件为一热敏电阻器或一热电偶。
在本发明的一实施例中，所述感温元件为一负温度系数热敏电阻器，所述感温元件耦接于所述限流元件与所述低压端之间。
在本发明的一实施例中，所述感温元件为一正温度系数热敏电阻器，所述感温元件耦接于所述高压端与所述限流元件之间。
在本发明的一实施例中，所述数个比较器的第二输入端各别耦接一参考端，所述数个比较器的第二输入端各别从所述参考端接收所述数个参考值中的一个。
在本发明的一实施例中，所述高压端耦接到一正直流电压端，所述低压端接地。
在本发明的一实施例中，所述数个参考值为数个正电压。
在本发明的一实施例中，所述数个比较器的输出端耦接一电源管理集成电路。
本发明的另一方面提供一种感温调控模块，包括：一温控分压器，具有一限流元件及一感温元件，所述限流元件与所述感温元件串接于一高压端与一低压端之间，并形成一串接点；及一转换器，具有数个比较器，所述数个比较器各别具有一第一输入端、一第二输入端及一输出端，所述第一输入端耦接所述串接点，所述数个比较器的第二输入端接收数个不同的参考值，所述数个参考值大于零，所述数个比较器依据来自所述串接点的一分压值与所述数个参考值进行比较以在所述输出端输出一比较结果。
在本发明的一实施例中，所述限流元件为一电阻器，所述感温元件为一热敏电阻器或一热电偶。
在本发明的一实施例中，所述感温元件为一负温度系数热敏电阻器，所述感温元件耦接于所述限流元件与所述低压端之间。
在本发明的一实施例中，所述感温元件为一正温度系数热敏电阻器，所述感温元件耦接于所述高压端与所述限流元件之间。
在本发明的一实施例中，所述数个比较器的第二输入端各别耦接一参考端，所述数个比较器的第二输入端各别从所述参考端接收所述数个参考值中的一个。
在本发明的一实施例中，所述数个参考值依序等比例递增或等比例递减。
在本发明的一实施例中，所述高压端耦接到一正直流电压端，所述低压端接地。
在本发明的一实施例中，所述数个参考值为数个正电压。
本发明的另一方面提供一种显示器，所述显示器包括如上所述的感温调控模块。
 有益效果
与现有技术相比较，本发明的显示器及其感温调控模块，可以因应温度上升而产生数个逻辑信号组合，使电源管理集成电路的输出电压随温度升高而降低，避免电子元件温度过度升高，以防止电器(如电视等显示器)停止运作或带来其他安全风险。
 附图说明
图1是本发明一实施例的感温调控模块的电路示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。再者，本发明所提到的方向用语，例如上、下、顶、底、前、后、左、右、内、外、侧面、周围、中央、水平、横向、垂直、纵向、轴向、径向、最上层或最下层等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。
请参照图1所示，本发明一实施例的感温调控模块可包括一温控分压器1及一转换器2，所述温控分压器1可具有一限流元件11及一感温元件12，所述限流元件11与所述感温元件12串接于一高压端Va与一低压端Vb之间，并形成一串接点13，所述串接点13用以产生一分压值；所述转换器2可具有数个比较器21(以4个为例，但不以此为限)，所述数个比较器21各别具有一第一输入端211、一第二输入端212及一输出端213，所述第一输入端211耦接所述串接点13，所述数个比较器21~24的第二输入端212可耦接到一并接埠，用以接收数个不同的参考值，所述数个参考值大于零；所述数个比较器21依据来自所述串接点的分压值与所述数个参考值进行比较以在所述输出端213输出一比较结果，所述数个比较器21的输出端213可耦接到另一并接埠，用以输出所述比较结果，例如：数个信号A、B、C、D(以4个为例，但不以此为限)，每个信号A、B、C、D可为高(H)或低(L)的逻辑电位，所述信号A、B、C、D可作为集成电路的内部信号。以下举例说明所述感温调控模块的实施方式，但不以此为限。
在一实施例中，所述高压端Va与所述低压端Vb可用于对所述温控分压器1提供一直流电压差，所述直流电压差可利用在所述高压端Va处的电压高于在所述低压端Vb处的电压而产生，例如：所述高压端Va可耦接到一正直流电压端VDD(如3V的直流电压)，所述低压端Vb可接地；相应地，所述数个不同的参考值可为数个大于零的正整数或小数，例如：可实现为数个正电压V ref1、V ref2、V ref3、V ref4(以4个为例，但不以此为限)表示。
在一实施例中，所述限流元件11为一可限制电流的电子元件(如电阻器等)，所述感温元件12为一可感测温度的电子元件(如热敏电阻器或热电偶等，但不以此为限)，例如：所述感温元件12可为一负温度系数(NTC)热敏电阻器，所述感温元件12可耦接于所述限流元件11与所述低压端Vb之间，当温度越高，所述感温元件12的电阻值越小，所述串接点13的分压值越小，例如：每上升10度(℃)，所述串接点13的分压值下降0.1V。
替代地，所述感温元件12还可为一正温度系数(PTC)热敏电阻器，所述感温元件12可耦接于所述高压端Va与所述限流元件11之间，当温度越高，所述感温元件12的电阻值越大，所述串接点13的分压值越小，例如：每上升10度，所述串接点13的分压值下降0.1V。
在一实施例中，所述数个比较器21的第二输入端212可各别耦接一参考端(例如一信号产生器的一直流电压输出端)，所述数个比较器21的第二输入端212各别从所述参考端接收所述数个参考值中的一个；所述数个参考值还可依序等比例递减(如V ref1>V ref2>V ref3>V ref4)或等比例递增(如V ref1<V ref2<V ref3<V ref4)，但在一些应用中，所述数个参考值的递增或递减方式也可以不是等比例的。以下举例说明所述感温调控模块的工作方式，但不以此为限。
举例而言，以应用于电视为例，如图1所示，如果所述感温元件12为负温度系数热敏电阻器，并且耦接于所述限流元件11与所述低压端Vb之间；所述数个比较器21的第二输入端212可输入所述数个参考值V ref1、V ref2、V ref3、V ref4，所述数个参考值V ref1、V ref2、V ref3、V ref4可以依序等比例递减(如V ref1>V ref2>V ref3>V ref4)，例如：依据所述数个比较器21的第二输入端212与所述参考端之间的一耦接顺序(如在图1中，由下到上)；所述数个比较器21的输出端213还可输出所述比较结果(例如：信号A、B、C、D的组合)到一待控元件，所述待控元件诸如：用于一电视的一电源管理集成电路(PMIC)。其中，由于面板驱动IC以及驱动集成电路(DriverIC)的热基本上都是由于PMIC的输出电压(VAA)所导致，PMIC的电流基本上保持不变，所以温度受到PMIC的输出电压的影响。
当环境温度为常温时，所述串接点13的分压值将会维持高电压，如所述串接点13的分压值大于参考值(例如正电压)V ref1、V ref2、V ref3、V ref4，则所述比较结果之信号A、B、C、D为H、H、H、H，使PMIC的输出电压为正常值；如果环境温度继续升高，如所述串接点13的分压值大于正电压V ref2、V ref3、V ref4，则所述比较结果之信号A、B、C、D为L、H、H、H，可使PMIC的输出电压降低(如1V)。依此类推，如果环境温度继续升高，则所述比较结果之信号A、B、C、D将再由L、H、H、H逐渐改变为L、L、H、H；L、L、L、H；L、L、L、L，因此，可以依据温度由低变高产生数个(如5个)区间的逻辑信号组合，如所述比较结果之信号A、B、C、D为L、L、L、L，则可通过PMIC致使电视直接关掉，以免发生安全风险。
应被注意的是，由于环境温度上升(如10度)时，所述串接点13的分压值可下降(如0.1V)，使PMIC的电压VAA降低(如1V)，电视中的元件温度基本上可同样降低(如10度)，以保持电子元件温度基本上不变，使各电子元件仍可保持在OTP保护范围内，且预留足够的边际。因此，通过上述感温调控模块依据温度上升改变输出的逻辑信号组合，可使PMIC的输出电压随温度升高而降低，避免电子元件温度过度升高，以防止电器(如电视等显示器)停止运作或带来其他安全风险。
在本发明的一实施例中，所述数个参考值还可依序(如在图1中，由下到上)等比例递增(如V ref1<V ref2<V ref3<V ref4)；当环境温度逐渐升高时，所述比较结果之信号A、B、C、D将由H、H、H、H逐渐改变H、H、H、L；H、H、L、L；H、L、L、L；L、L、L、L，此时，通过适当改变所述数个比较器21的输出端213与PMIC之间的连接方式(如连接顺序相反)，即可带来如上所述的好处。
本发明的另一方面包括一种显示器，例如：电视或液晶显示器等，但不以此为限，所述显示器包括如上所述的感温调控模块，其运作方式已说明如上，不再赘述。
本发明上述实施例的显示器及其感温调控模块，可以因应温度上升而产生数个逻辑信号组合，使电源管理集成电路的输出电压随温度升高而降低，避免电子元件温度过度升高，以防止电器(如电视等显示器)停止运作或带来其他安全风险。
本发明已由上述相关实施例加以描述，然而上述实施例仅为实施本发明的范例。必需指出的是，已公开的实施例并未限制本发明的范围。相反地，包含于权利要求书的精神及范围的修改及均等设置均包括于本发明的范围内。

Claims (17)

  1. 一种感温调控模块，其包括：
    一温控分压器，具有一限流元件及一感温元件，所述限流元件与所述感温元件串接于一高压端与一低压端之间，并形成一串接点；及
    一转换器，具有数个比较器，所述数个比较器各别具有一第一输入端、一第二输入端及一输出端，所述第一输入端耦接所述串接点，所述数个比较器的第二输入端接收数个不同的参考值，所述数个参考值大于零，所述数个比较器依据来自所述串接点的一分压值与所述数个参考值进行比较以在所述输出端输出一比较结果；
    其中，所述数个参考值依序等比例递增或等比例递减；所述限流元件为一电阻器，所述感温元件为一热敏电阻器或一热电偶。
  2. 如权利要求1所述的感温调控模块，其中，所述感温元件为一负温度系数热敏电阻器，所述感温元件耦接于所述限流元件与所述低压端之间。
  3. 如权利要求1所述的感温调控模块，其中，所述感温元件为一正温度系数热敏电阻器，所述感温元件耦接于所述高压端与所述限流元件之间。
  4. 如权利要求1所述的感温调控模块，其中，所述数个比较器的第二输入端各别耦接一参考端，所述数个比较器的第二输入端各别从所述参考端接收所述数个参考值中的一个。
  5. 如权利要求1所述的感温调控模块，其中，所述高压端耦接到一正直流电压端，所述低压端接地。
  6. 如权利要求5所述的感温调控模块，其中，所述数个参考值为数个正电压。
  7. 如权利要求1所述的感温调控模块，其中，所述数个比较器的输出端耦接一电源管理集成电路。
  8. 一种感温调控模块，其包括：
    一温控分压器，具有一限流元件及一感温元件，所述限流元件与所述感温元件串接于一高压端与一低压端之间，并形成一串接点；及
    一转换器，具有数个比较器，所述数个比较器各别具有一第一输入端、一第二输入端及一输出端，所述第一输入端耦接所述串接点，所述数个比较器的第二输入端接收数个不同的参考值，所述数个参考值大于零，所述数个比较器依据来自所述串接点的一分压值与所述数个参考值进行比较以在所述输出端输出一比较结果。
  9. 如权利要求8所述的感温调控模块，其中，所述限流元件为一电阻器，所述感温元件为一热敏电阻器或一热电偶。
  10. 如权利要求9所述的感温调控模块，其中，所述感温元件为一负温度系数热敏电阻器，所述感温元件耦接于所述限流元件与所述低压端之间。
  11. 如权利要求9所述的感温调控模块，其中，所述感温元件为一正温度系数热敏电阻器，所述感温元件耦接于所述高压端与所述限流元件之间。
  12. 如权利要求8所述的感温调控模块，其中，所述数个比较器的第二输入端各别耦接一参考端，所述数个比较器的第二输入端各别从所述参考端接收所述数个参考值中的一个。
  13. 如权利要求8所述的感温调控模块，其中，所述数个参考值依序等比例递增或等比例递减。
  14. 如权利要求8所述的感温调控模块，其中，所述高压端耦接到一正直流电压端，所述低压端接地。
  15. 如权利要求14所述的感温调控模块，其中，所述数个参考值为数个正电压。
  16. 如权利要求8所述的感温调控模块，其中，所述数个比较器的输出端耦接一电源管理集成电路。
  17. 一种显示器，其包括如权利要求8所述的感温调控模块。
PCT/CN2019/070577 2018-10-17 2019-01-07 显示器及其感温调控模块 Ceased WO2020077893A1 (zh)

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