CN201430626Y - Cell-phone electronic-scale circuit - Google Patents

Cell-phone electronic-scale circuit Download PDF

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Publication number
CN201430626Y
CN201430626Y CN2009200417584U CN200920041758U CN201430626Y CN 201430626 Y CN201430626 Y CN 201430626Y CN 2009200417584 U CN2009200417584 U CN 2009200417584U CN 200920041758 U CN200920041758 U CN 200920041758U CN 201430626 Y CN201430626 Y CN 201430626Y
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China
Prior art keywords
circuit
electronic scale
pins
special
gnd
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Expired - Fee Related
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CN2009200417584U
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Chinese (zh)
Inventor
庞庆锋
袁杰
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CHANGZHOU SHOUXIN TIANFA ELECTRONICS Co Ltd
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CHANGZHOU SHOUXIN TIANFA ELECTRONICS Co Ltd
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Priority to CN2009200417584U priority Critical patent/CN201430626Y/en
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Publication of CN201430626Y publication Critical patent/CN201430626Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a cell-phone electronic-scale circuit, which comprises a cell-phone mainboard circuit, wherein the cell-phone mainboard circuit comprises a DI port, a CLK port, a GND portand a VDD port, and also comprises a power supply input circuit, a sensor circuit, an anti-interference circuit and a special A/D conversion circuit for an electronic scale; and a weight signal of the sensor circuit is transmitted to a cell-phone display screen to be displayed through the special A/D conversion circuit for the electronic scale and corresponding software. The cell-phone electronic-scale circuit can be conveniently installed on different cell-phone platforms, so the cell-phone has the function of the electronic scale and is convenient for people to carry and to use.

Description

Mobile phone electronic scale circuit
Technical field
The utility model relates to a kind of novel electron scale circuit, especially a kind of mobile phone electronic scale circuit that makes regular handset possess electronic scale function.
Background technology
Modern mobile phone has a lot of functions; bring convenience to people's production and life; but mainly concentrate on the application of communication and music function; the application of daily life function is still not enough; such as; run into the situation of giving short weight through regular meeting in people's shopping process; urgent need has the measurement instrument of a standard to check; but everybody can often not be with a bar to claim to check again when shopping at one's side; be exactly that the checking balance setting is also very worried; cause the inconvenience of check weighing; but mobile phone is the indispensable means of communication that modern people's life is carried; will bring great convenience to everybody shopping of living as crossing the function have a kind of mobile phone can realize electronic scale, the purpose of this utility model is to provide a kind of mobile phone electronic scale circuit of practicality, makes our daily mobile phone possess conventional electronic scale function.
The utility model content
The technical problems to be solved in the utility model provides a kind of mobile phone electronic scale circuit and is easily installed on most of cell phone platforms, makes mobile phone have the function of electronic scale, is convenient for people to the check weighing of article and daily carrying and using.
For solving the appeal technical problem, the utility model adopts a kind of mobile phone electronic scale circuit, comprise the cell phone mainboard circuit, described cell phone mainboard circuit comprises DI, CLK, GND and vdd terminal mouth, and mobile phone electronic scale circuit also comprises power supply input circuit, sensor circuit, anti-jamming circuit, the special-purpose A/D change-over circuit of electronic scale; Described power supply input circuit comprises triode, resistance, and described sensor circuit comprises an electric bridge, and described anti-jamming circuit comprises capacitor, and the special-purpose A/D change-over circuit of described electronic scale comprises the special-purpose A/D conversion chip of an electronic scale, is made up of 1~16 pin;
1 of the special-purpose A/D conversion chip of the vdd terminal mouth of cell phone mainboard circuit and the electronic scale acquisition power supply that links to each other with 16 pins, cell phone mainboard circuit DI port is connected with the special-purpose A/D conversion chip of electronic scale output circuit 12 pins, the CLK port of cell phone mainboard circuit is connected with clock signal 11 pins of the special-purpose A/D conversion chip of electronic scale, 5 of the special-purpose A/D conversion chip of the GND of cell phone mainboard circuit and electronic scale, 9,10,14 are connected with 15 pins, link to each other with GND behind the 6 pin series capacitors, 7,8 pins link to each other with the output of electric bridge respectively, input one end of electric bridge connects the GND port, another input of electric bridge links to each other with the collector electrode of 3 pins and triode, the base stage of triode links to each other with 2 pins, emitter is respectively with 1 pin, 16 pins are connected with mobile phone vdd terminal mouth, 4 pins are connected with the collector electrode of triode by after the series resistance, 4 pins link to each other with GND by after the series resistance, link to each other with GND behind the collector electrode series capacitor of triode.
The DI of cell phone mainboard circuit, CLK port to any point between the sensor circuit are connected with GND.
After the output analog signal that receives sensor circuit by the special-purpose A/D conversion chip of electronic scale becomes digital signal via internal conversion, be sent to the DI port of cell phone mainboard circuit by 12 pins, measurement numerical value is reflected on the handset displays screen, adds that at 3 pins capacitor and 6 pins add that capacitor reaches the power supply interference of synchronous inhibition 50HZ and 60HZ simultaneously.
The utility model adopts a kind of mobile phone electronic scale circuit, can be installed in easily on all kinds of cell phone platforms, makes mobile phone possess the function of electronic scale, is convenient for people to carry and use.
Description of drawings
Fig. 1 is a circuit principle structure block diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
Identical signs all on circuit theory Fig. 2 of the present utility model all link together.
Embodiment
Further specify the technical solution of the utility model below in conjunction with Fig. 1 and Fig. 2.Mobile phone electronic scale circuit comprises cell phone mainboard circuit, power supply input circuit, sensor circuit, anti-jamming circuit, the special-purpose A/D change-over circuit of electronic scale.The mainboard that the cell phone mainboard circuit utilizes mobile phone to carry, comprise DI, CLK, GND and vdd terminal mouth, power supply input circuit comprises triode Q1, resistance R 1, resistance R 2, the model of triode Q1 adopts the s8550 pipe, R1=15K Ω, R2=10K Ω, sensor circuit comprises an electric bridge QL, anti-jamming circuit comprises capacitor C2, capacitor C3, C2=10uF, C3=1uF, the special-purpose A/D change-over circuit of electronic scale comprises the special-purpose A/D conversion chip of a universal electric scale, chip is made up of 1~16 pin, circuit power 2.7V~5.5V;
1 of the special-purpose A/D conversion chip of the vdd terminal mouth of cell phone mainboard circuit and the electronic scale acquisition power supply that links to each other with 16 pins, cell phone mainboard circuit DI port is connected with the special-purpose A/D conversion chip of electronic scale output circuit 12 pins, the CLK port of cell phone mainboard circuit is connected with clock signal 11 pins of the special-purpose A/D conversion chip of electronic scale, 5 of the special-purpose A/D conversion chip of the GND of cell phone mainboard circuit and electronic scale, 9,10,14 are connected with 15 pins, link to each other with GND behind the 6 pin series capacitor C3,7,8 pins link to each other with the output of electric bridge QL respectively, input one end of electric bridge QL connects the GND port, the other end links to each other with the collector electrode of 3 pins with triode Q1, the base stage of triode Q1 links to each other with 2 pins, emitter is respectively with 1 pin, 16 pins are connected with mobile phone vdd terminal mouth, 4 pins are connected with the collector electrode of triode Q1 by behind the series resistance R1,4 pins link to each other with GND by behind the series resistance R2, link to each other with GND behind the collector electrode series capacitor C2 of triode Q1.
Electric bridge QL produces 7 pins and the 8 pins input analog signal of sensor signal to the special-purpose A/D conversion chip of electronic scale after obtaining the analog power input code by 3 pins of the special-purpose A/D conversion chip of electronic scale.
Anti-jamming circuit comprises capacitor C2 and capacitor C3, and 3 pins add that capacitor C2 and 6 pins add capacitor C3, makes to exchange in the power supply to disturb ground connection, and the power supply that suppresses 50HZ and 60HZ synchronously disturbs.
The special-purpose A/D change-over circuit of electronic scale comprises the special-purpose A/D conversion chip of an electronic scale, form by 1~16 pin, the analog signal that 7 pins and 8 pins receive the sensor circuit input is converted to digital signal via chip internal, export the DI port of cell phone mainboard circuit to by 12 pins, cooperate software that output weight numerical value is shown to the display screen of mobile phone.
DI, CLK port to any point between the sensor circuit of cell phone mainboard circuit are connected with GND when further improving.

Claims (2)

1, a kind of mobile phone electronic scale circuit, comprise the cell phone mainboard circuit, described cell phone mainboard circuit comprises DI, CLK, GND and vdd terminal mouth, it is characterized in that: mobile phone electronic scale circuit also comprises power supply input circuit, sensor circuit, anti-jamming circuit, the special-purpose A/D change-over circuit of electronic scale; Described power supply input circuit comprises triode (Q1), resistance (R1), resistance (R2), described sensor circuit comprises an electric bridge (QL), described anti-jamming circuit comprises capacitor (C1), capacitor (C2), the special-purpose A/D change-over circuit of