Simple mobile internal temperature detection circuit
A technology for internal temperature and detection circuits, applied to thermometers, thermometers using directly heat-sensitive electric/magnetic elements, measuring devices, etc., can solve the problems of large volume, many electronic components, and high cost, and achieve simple circuit structure, The effect of less electronic components and low cost
Inactive Publication Date: 2015-06-10
CHENGDU YOYOUMOBILE SCI & TECH
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Problems solved by technology
[0002] Mobile phone is an important communication product that is more popular at present. Mobile phone products are being continuously improved and upgraded. The circuit structure of the circuit inside the mobile phone in the prior art is complicated, and many electronic components are used. The cost is high and the volume is large, which is not conducive to modern mobile phones. Ultra-thin and miniaturized development, in addition, mobile phones in the prior art do not have a temperature detection device
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[0009] The present invention will be further described below in conjunction with accompanying drawing:
[0010] Such as figure 1 Shown: the present invention includes the first resistor R1 to the ninth resistor R9, the regulator tube DW, the temperature sensor BT, the first capacitor C1 to the fourth capacitor C4, the first potentiometer RP1, the second potentiometer RP2, Amplifier IC1 and power-to-frequency converter IC2, the voltage input terminals are respectively connected to the first end of the first resistor R1, the first end of the sixth resistor R6, the first end of the eighth resistor R8 and the power-to-frequency converter BT The eighth pin is connected, the second end of the first resistor R1 is respectively connected with the first end of the second resistor R2, the first end of the third resistor R3 and the negative pole of the regulator tube DW, the second resistor R2 The second terminal of the temperature sensor BT is respectively connected to the positive pol...
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The invention discloses a simple mobile internal temperature detection circuit which comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a voltage regulator tube, a temperature sensor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first potentiometer, a second potentiometer, an amplifier and an electric-frequency converter. The temperature sensor converts environment temperature into millivolt-level analog voltage signals which are sent to the amplifier to be amplified into 0-voltage to 3-voltage voltage signals and inputted into the electric-frequency converter for voltage-frequency conversion, and at last frequency signals are outputted. Compared with the prior art, the simple mobile internal temperature detection unit has the advantages of simpleness in structure, few involvement of electronic parts and low cost; development of ultra-thin mobiles is benefited; particularly when the simple mobile internal temperature detection circuit is applied in the mobiles, the mobiles featuring in temperature sensing are convenient to use, and promotion and use values are achieved.
Description
technical field [0001] The invention relates to a mobile phone internal circuit, in particular to a simple mobile phone internal temperature detection circuit. Background technique [0002] Mobile phone is an important communication product that is more popular at present. Mobile phone products are being continuously improved and upgraded. The circuit structure of the circuit inside the mobile phone in the prior art is complicated, and many electronic components are used. The cost is high and the volume is large, which is not conducive to modern mobile phones. Ultra-thin and miniaturized development, in addition, mobile phones in the prior art do not have a temperature detection device. Contents of the invention [0003] The object of the present invention is to provide a simple mobile phone internal temperature detection circuit in order to solve the above problems. [0004] The present invention achieves the above object through the following technical solutions: [00...
Claims
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Inventor 李华
Owner CHENGDU YOYOUMOBILE SCI & TECH