CN104407204A - Phase-shift prompt protection electrical system - Google Patents
Phase-shift prompt protection electrical system Download PDFInfo
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- CN104407204A CN104407204A CN201410695926.7A CN201410695926A CN104407204A CN 104407204 A CN104407204 A CN 104407204A CN 201410695926 A CN201410695926 A CN 201410695926A CN 104407204 A CN104407204 A CN 104407204A
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Abstract
The invention discloses a phase-shift prompt protection electrical system mainly comprising a front processing circuit, an amplifying circuit, a drive circuit, a fine tuning circuit and an alarm circuit. The amplifying circuit is connected with the output end of the front processing circuit. The drive circuit is connected with the output end of the amplifying circuit. The fine tuning circuit is connected with the drive circuit. The alarm circuit is connected with both the drive circuit and the fine tuning circuit. The phase-shift prompt protection electrical system is characterized by further comprising a phase shift circuit; the phase shift circuit connected with both the amplifying circuit and the alarm circuit and comprises a phase shift chip U1, a triode VT3, a triode VT2, a resistor R18, a polar capacitor C9 and the like; one end of the resistor R18 is connected with a pin VCC+ of the phase shift chip U1, and the other end of the resistor R18 is connected with a pin IN1 of a phase shift chip U2; a cathode of the polar capacitor C9 is connected with a pin IN1 of the phase shift chip U1 through a resistor R19, and an anode of the polar capacitor C9 is connected with a pin IN2 of the phase shift chip U1. The phase-shift prompt protection electrical system has the advantages that the phase shift circuit helps improve alarming speed and accuracy, and unnecessary waste caused by misjudgment of the system is avoided.
Description
Technical field
The present invention relates to a kind of electrical system, specifically refer to that a kind of phase shift reminds protection electrical system.
Background technology
Along with the raising that people require quality of life, be electrically one of core subjects in modern science and technology field, indispensable few crucial subject in current high-technology field especially.The huge advance of electronic technology has just promoted the arrival of the information age based on computer network just, and will change life, the mode of operation of the mankind.Current electrical system can not detection system voltage whether normal, the normal use that all can have influence on terminal electric loading as too high or too low in system voltage.This not only affects the serviceable life by electric loading, also can have a strong impact on the production of people, life.
Summary of the invention
The object of the invention is to solve current electrical system and cannot detect the whether normal defect of voltage, provide a kind of phase shift that automatically can detect voltage to remind protection electrical system.
Object of the present invention is by following technical proposals reality: a kind of phase shift reminds protection electrical system, mainly comprise front-end processing circuit, the amplifying circuit be connected with front-end processing circuit output terminal, the driving circuit be connected with amplification circuit output end, the trimming circuit be connected with driving circuit, and the warning circuit be simultaneously connected with trimming circuit with driving circuit, also comprise the phase-shift circuit be simultaneously connected with warning circuit with amplifying circuit, described phase-shift circuit is by phase shift chip U1, triode VT3, triode VT2, one end is connected with the VCC+ pin of phase shift chip U1, the resistance R18 that the other end is connected with the IN1 pin of phase shift chip U2, negative pole is connected with the IN1 pin of phase shift chip U1 after resistance R19, the polar capacitor C9 that positive pole is connected with the IN2 pin of phase shift chip U1, positive pole is connected with the NC pin of phase shift chip U1 after resistance R17, the polar capacitor C7 that negative pole is connected with the collector of triode VT3, positive pole is connected with the OUT pin of phase shift chip U1, the polar capacitor C8 of minus earth, one end is connected with the OUT pin of phase shift chip U1, the potentiometer R16 that the other end is connected with the collector of triode VT2, P pole is connected with the OFF1 pin of phase shift chip U1, the diode D3 that N pole is connected with the base stage of triode VT3, and P pole is connected with the OFF2 pin of phase shift chip U1, the diode D2 that N pole is connected with the emitter of triode VT2 forms, the VCC+ pin of described phase shift chip U1 is connected with amplifying circuit, VCC-pin ground connection, OUT pin are connected with the sliding end of potentiometer R16, the emitter of triode VT3 is connected with the base stage of triode VT2, and the collector of triode VT2 is connected with warning circuit.
Described front-end processing circuit comprises resistance R1, resistance R2, resistance R3, polar capacitor C1; The negative pole of polar capacitor C1 is connected with resistance R1 after resistance R2, and resistance R3 and resistance R2 is in parallel, and two is jointly held and is all connected with amplifying circuit.
Described amplifying circuit is by amplifier P1, amplifier P2, the resistance R4 that one end is connected with the positive pole of amplifier P2, the other end is then connected with the output stage of amplifier P2 after resistance R6, and the resistance R5 be serially connected between the negative pole of amplifier P1 and output stage forms; The positive pole of described amplifier P1 is connected with the negative pole of polar capacitor C1, output stage is connected with the VCC+ pin of driving circuit and phase shift chip U1 simultaneously, the negative pole of amplifier P2 is connected with the positive pole of amplifier P1, its positive pole is then connected with the tie point of resistance R1 with resistance R2, output stage is connected with driving circuit, and resistance R4 is connected with driving circuit with the tie point of resistance R6.
Described driving circuit comprises driving chip K, resistance R7, polar capacitor C2, polar capacitor C3; The positive pole of polar capacitor C2 is connected with the INI pin of driving chip K after resistance R7, minus earth, as an output terminal of system while the negative pole of polar capacitor C3 is connected with the VCC pin of driving chip K, its positive pole is then connected with the tie point of resistance R6 with resistance R4; The INV pin of described driving chip K is connected with the output stage of amplifier P2, its INI pin is then connected with the output stage of amplifier P1, COM pin is connected with the positive pole of polar capacitor C2, GND pin ground connection, PWM pin is all connected with warning circuit with VREF pin, and RT pin is connected with trimming circuit.
Described trimming circuit comprises resistance R10, triode VT1, polar capacitor C5; The base stage of triode VT1 is connected with the RT pin of driving chip K after resistance R10, and as another output terminal of system while its emitter is connected with warning circuit, collector is connected with the positive pole of polar capacitor C3 after polar capacitor C5.
Described warning circuit comprises sample circuit, and the testing circuit be connected with sample circuit; Sample circuit comprises polar capacitor C4, resistance R8, resistance R9, resistance R11, and voltage stabilizing diode D1; The positive pole of polar capacitor C4 is connected with the P pole of voltage stabilizing diode D1 after resistance R8, resistance R9, resistance R11, its negative pole is then directly connected with the N pole of voltage stabilizing diode D1, the positive pole of described polar capacitor C4 is also connected with the VREF pin of driving chip K, negative pole is also connected with the emitter of triode VT1, resistance R8 is connected with testing circuit with the tie point of resistance R9, and resistance R9 is connected with the collector of testing circuit and triode VT2 with the tie point of resistance R11 simultaneously.
Described testing circuit is by Sheffer stroke gate Q1, Sheffer stroke gate Q2, Sheffer stroke gate Q3, Sheffer stroke gate Q4, one end is connected with the positive terminal of Sheffer stroke gate Q1, the resistance R12 that the other end is connected with the output terminal of Sheffer stroke gate Q1 after resistance R13, positive pole is connected with the output terminal of Sheffer stroke gate Q2, the polar capacitor C6 that negative pole is then connected with the tie point of resistance R13 with resistance R12, one end is connected with the output terminal of Sheffer stroke gate Q3, the resistance R14 that the other end is connected with the output terminal of Sheffer stroke gate Q4 after resistance R15, and one end is connected with the tie point of resistance R13 with resistance R12, the warning lamp VL that the other end is then connected with the tie point of resistance R15 with resistance R14 forms, the end of oppisite phase of described Sheffer stroke gate Q1 is connected with the tie point of resistance R9 with resistance R11, the positive terminal of Sheffer stroke gate Q2 is connected with the output terminal of Sheffer stroke gate Q1, its end of oppisite phase is then connected with the tie point of resistance R9 with resistance R8, and the forward pole of Sheffer stroke gate Q3 is all connected with the output terminal of Sheffer stroke gate Q2 with reversed pole with the forward pole of reversed pole and Sheffer stroke gate Q4.
The present invention compared with prior art has the following advantages and beneficial effect:
1, phase-shift circuit of the present invention can improve alarm velocity and accuracy, and the existing picture of erroneous judgement causes unnecessary waste to avoid system to occur.
2, have employed Sheffer stroke gate in testing circuit structure of the present invention, make the antijamming capability of circuit result that is stronger, that detect more accurate by the combination of Sheffer stroke gate.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment
As shown in Figure 1; phase shift of the present invention reminds protection electrical system; mainly comprise front-end processing circuit; the amplifying circuit be connected with front-end processing circuit output terminal; the driving circuit be connected with amplification circuit output end; the trimming circuit be connected with driving circuit, and the warning circuit be simultaneously connected with trimming circuit with driving circuit, also comprise the phase-shift circuit be simultaneously connected with warning circuit with amplifying circuit.
Wherein, phase-shift circuit is by phase shift chip U1, triode VT3, triode VT2, one end is connected with the VCC+ pin of phase shift chip U1, the resistance R18 that the other end is connected with the IN1 pin of phase shift chip U2, negative pole is connected with the IN1 pin of phase shift chip U1 after resistance R19, the polar capacitor C9 that positive pole is connected with the IN2 pin of phase shift chip U1, positive pole is connected with the NC pin of phase shift chip U1 after resistance R17, the polar capacitor C7 that negative pole is connected with the collector of triode VT3, positive pole is connected with the OUT pin of phase shift chip U1, the polar capacitor C8 of minus earth, one end is connected with the OUT pin of phase shift chip U1, the potentiometer R16 that the other end is connected with the collector of triode VT2, P pole is connected with the OFF1 pin of phase shift chip U1, the diode D3 that N pole is connected with the base stage of triode VT3, and P pole is connected with the OFF2 pin of phase shift chip U1, the diode D2 that N pole is connected with the emitter of triode VT2 forms, the VCC+ pin of described phase shift chip U1 is connected with amplifying circuit, VCC-pin ground connection, OUT pin are connected with the sliding end of potentiometer R16, the emitter of triode VT3 is connected with the base stage of triode VT2, and the collector of triode VT2 is connected with warning circuit.Phase-shift circuit can improve alarm velocity and accuracy, and the existing picture of erroneous judgement causes unnecessary waste to avoid system to occur.In order to better realize the present invention, described phase shift chip U1 is preferably LM741 integrated chip, and it is highly sensitive, cheap.
Described front-end processing circuit comprises resistance R1, resistance R2, resistance R3, polar capacitor C1; The negative pole of polar capacitor C1 is connected with resistance R1 after resistance R2, and resistance R3 and resistance R2 is in parallel, and two is jointly held and is all connected with amplifying circuit.
Described amplifying circuit is by amplifier P1, amplifier P2, the resistance R4 that one end is connected with the positive pole of amplifier P2, the other end is then connected with the output stage of amplifier P2 after resistance R6, and the resistance R5 be serially connected between the negative pole of amplifier P1 and output stage forms; The positive pole of described amplifier P1 is connected with the negative pole of polar capacitor C1, output stage is connected with the VCC+ pin of driving circuit and phase shift chip U1 simultaneously, the negative pole of amplifier P2 is connected with the positive pole of amplifier P1, its positive pole is then connected with the tie point of resistance R1 with resistance R2, output stage is connected with driving circuit, and resistance R4 is connected with driving circuit with the tie point of resistance R6.
Described driving circuit comprises driving chip K, resistance R7, polar capacitor C2, polar capacitor C3; The positive pole of polar capacitor C2 is connected with the INI pin of driving chip K after resistance R7, minus earth, as an output terminal of system while the negative pole of polar capacitor C3 is connected with the VCC pin of driving chip K, its positive pole is then connected with the tie point of resistance R6 with resistance R4; The INV pin of described driving chip K is connected with the output stage of amplifier P2, its INI pin is then connected with the output stage of amplifier P1, COM pin is connected with the positive pole of polar capacitor C2, GND pin ground connection, PWM pin is all connected with warning circuit with VREF pin, and RT pin is connected with trimming circuit.
Trimming circuit comprises resistance R10, triode VT1, polar capacitor C5; The base stage of triode VT1 is connected with the RT pin of driving chip K after resistance R10, and as another output terminal of system while its emitter is connected with warning circuit, collector is connected with the positive pole of polar capacitor C3 after polar capacitor C5.
Described warning circuit comprises sample circuit, and the testing circuit be connected with sample circuit; Sample circuit comprises polar capacitor C4, resistance R8, resistance R9, resistance R11, and voltage stabilizing diode D1; The positive pole of polar capacitor C4 is connected with the P pole of voltage stabilizing diode D1 after resistance R8, resistance R9, resistance R11, its negative pole is then directly connected with the N pole of voltage stabilizing diode D1, the positive pole of described polar capacitor C4 is also connected with the VREF pin of driving chip K, negative pole is also connected with the emitter of triode VT1, resistance R8 is connected with testing circuit with the tie point of resistance R9, and resistance R9 is connected with the collector of testing circuit and triode VT2 with the tie point of resistance R11 simultaneously.
Described testing circuit is by Sheffer stroke gate Q1, Sheffer stroke gate Q2, Sheffer stroke gate Q3, Sheffer stroke gate Q4, one end is connected with the positive terminal of Sheffer stroke gate Q1, the resistance R12 that the other end is connected with the output terminal of Sheffer stroke gate Q1 after resistance R13, positive pole is connected with the output terminal of Sheffer stroke gate Q2, the polar capacitor C6 that negative pole is then connected with the tie point of resistance R13 with resistance R12, one end is connected with the output terminal of Sheffer stroke gate Q3, the resistance R14 that the other end is connected with the output terminal of Sheffer stroke gate Q4 after resistance R15, and one end is connected with the tie point of resistance R13 with resistance R12, the warning lamp VL that the other end is then connected with the tie point of resistance R15 with resistance R14 forms, the end of oppisite phase of described Sheffer stroke gate Q1 is connected with the tie point of resistance R9 with resistance R11, the positive terminal of Sheffer stroke gate Q2 is connected with the output terminal of Sheffer stroke gate Q1, its end of oppisite phase is then connected with the tie point of resistance R9 with resistance R8, and the forward pole of Sheffer stroke gate Q3 is all connected with the output terminal of Sheffer stroke gate Q2 with reversed pole with the forward pole of reversed pole and Sheffer stroke gate Q4.
During work, when testing circuit detects the brownout of system, the present embodiment is lower than 11V, and warning lamp VL can send stable light.When testing circuit detects the overtension of system, the present embodiment is higher than 15V, and warning lamp VL can glimmer with the frequency of 1HZ.When voltage is normal, when namely voltage is between 11-15V, warning lamp can extinguish, and people can handle it according to different situations.
As mentioned above, just well the present invention can be realized.
Claims (7)
1. a phase shift reminds protection electrical system, mainly comprise front-end processing circuit, the amplifying circuit be connected with front-end processing circuit output terminal, the driving circuit be connected with amplification circuit output end, the trimming circuit be connected with driving circuit, and the warning circuit be simultaneously connected with trimming circuit with driving circuit, it is characterized in that: also comprise the phase-shift circuit be simultaneously connected with warning circuit with amplifying circuit, described phase-shift circuit is by phase shift chip U1, triode VT3, triode VT2, one end is connected with the VCC+ pin of phase shift chip U1, the resistance R18 that the other end is connected with the IN1 pin of phase shift chip U2, negative pole is connected with the IN1 pin of phase shift chip U1 after resistance R19, the polar capacitor C9 that positive pole is connected with the IN2 pin of phase shift chip U1, positive pole is connected with the NC pin of phase shift chip U1 after resistance R17, the polar capacitor C7 that negative pole is connected with the collector of triode VT3, positive pole is connected with the OUT pin of phase shift chip U1, the polar capacitor C8 of minus earth, one end is connected with the OUT pin of phase shift chip U1, the potentiometer R16 that the other end is connected with the collector of triode VT2, P pole is connected with the OFF1 pin of phase shift chip U1, the diode D3 that N pole is connected with the base stage of triode VT3, and P pole is connected with the OFF2 pin of phase shift chip U1, the diode D2 that N pole is connected with the emitter of triode VT2 forms, the VCC+ pin of described phase shift chip U1 is connected with amplifying circuit, VCC-pin ground connection, OUT pin are connected with the sliding end of potentiometer R16, the emitter of triode VT3 is connected with the base stage of triode VT2, and the collector of triode VT2 is connected with warning circuit.
2. a kind of phase shift according to claim 1 reminds protection electrical system, it is characterized in that: described front-end processing circuit comprises resistance R1, resistance R2, resistance R3, polar capacitor C1; The negative pole of polar capacitor C1 is connected with resistance R1 after resistance R2, and resistance R3 and resistance R2 is in parallel, and two is jointly held and is all connected with amplifying circuit.
3. a kind of phase shift according to claim 2 reminds protection electrical system, it is characterized in that: described amplifying circuit is by amplifier P1, amplifier P2, the resistance R4 that one end is connected with the positive pole of amplifier P2, the other end is then connected with the output stage of amplifier P2 after resistance R6, and the resistance R5 be serially connected between the negative pole of amplifier P1 and output stage forms; The positive pole of described amplifier P1 is connected with the negative pole of polar capacitor C1, output stage is connected with the VCC+ pin of driving circuit and phase shift chip U1 simultaneously, the negative pole of amplifier P2 is connected with the positive pole of amplifier P1, its positive pole is then connected with the tie point of resistance R1 with resistance R2, output stage is connected with driving circuit, and resistance R4 is connected with driving circuit with the tie point of resistance R6.
4. a kind of phase shift according to claim 3 reminds protection electrical system, it is characterized in that: described driving circuit comprises driving chip K, resistance R7, polar capacitor C2, polar capacitor C3; The positive pole of polar capacitor C2 is connected with the INI pin of driving chip K after resistance R7, minus earth, as an output terminal of system while the negative pole of polar capacitor C3 is connected with the VCC pin of driving chip K, its positive pole is then connected with the tie point of resistance R6 with resistance R4; The INV pin of described driving chip K is connected with the output stage of amplifier P2, its INI pin is then connected with the output stage of amplifier P1, COM pin is connected with the positive pole of polar capacitor C2, GND pin ground connection, PWM pin is all connected with warning circuit with VREF pin, and RT pin is connected with trimming circuit.
5. a kind of phase shift according to claim 4 reminds protection electrical system, it is characterized in that: described trimming circuit comprises resistance R10, triode VT1, polar capacitor C5; The base stage of triode VT1 is connected with the RT pin of driving chip K after resistance R10, and as another output terminal of system while its emitter is connected with warning circuit, collector is connected with the positive pole of polar capacitor C3 after polar capacitor C5.
6. a kind of phase shift according to claim 5 reminds protection electrical system, it is characterized in that: described warning circuit comprises sample circuit, and the testing circuit be connected with sample circuit; Sample circuit comprises polar capacitor C4, resistance R8, resistance R9, resistance R11, and voltage stabilizing diode D1; The positive pole of polar capacitor C4 is connected with the P pole of voltage stabilizing diode D1 after resistance R8, resistance R9, resistance R11, its negative pole is then directly connected with the N pole of voltage stabilizing diode D1, the positive pole of described polar capacitor C4 is also connected with the VREF pin of driving chip K, negative pole is also connected with the emitter of triode VT1, resistance R8 is connected with testing circuit with the tie point of resistance R9, and resistance R9 is connected with the collector of testing circuit and triode VT2 with the tie point of resistance R11 simultaneously.
7. a kind of phase shift according to claim 6 reminds protection electrical system, it is characterized in that: described testing circuit is by Sheffer stroke gate Q1, Sheffer stroke gate Q2, Sheffer stroke gate Q3, Sheffer stroke gate Q4, one end is connected with the positive terminal of Sheffer stroke gate Q1, the resistance R12 that the other end is connected with the output terminal of Sheffer stroke gate Q1 after resistance R13, positive pole is connected with the output terminal of Sheffer stroke gate Q2, the polar capacitor C6 that negative pole is then connected with the tie point of resistance R13 with resistance R12, one end is connected with the output terminal of Sheffer stroke gate Q3, the resistance R14 that the other end is connected with the output terminal of Sheffer stroke gate Q4 after resistance R15, and one end is connected with the tie point of resistance R13 with resistance R12, the warning lamp VL that the other end is then connected with the tie point of resistance R15 with resistance R14 forms, the end of oppisite phase of described Sheffer stroke gate Q1 is connected with the tie point of resistance R9 with resistance R11, the positive terminal of Sheffer stroke gate Q2 is connected with the output terminal of Sheffer stroke gate Q1, its end of oppisite phase is then connected with the tie point of resistance R9 with resistance R8, and the forward pole of Sheffer stroke gate Q3 is all connected with the output terminal of Sheffer stroke gate Q2 with reversed pole with the forward pole of reversed pole and Sheffer stroke gate Q4.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410695926.7A CN104407204A (en) | 2014-11-26 | 2014-11-26 | Phase-shift prompt protection electrical system |
| CN201510317277.1A CN104931768A (en) | 2014-11-26 | 2015-06-10 | Common source amplification circuit-based phase-shift type prompting and protection electric system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410695926.7A CN104407204A (en) | 2014-11-26 | 2014-11-26 | Phase-shift prompt protection electrical system |
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| Publication Number | Publication Date |
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| CN104407204A true CN104407204A (en) | 2015-03-11 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410695926.7A Pending CN104407204A (en) | 2014-11-26 | 2014-11-26 | Phase-shift prompt protection electrical system |
| CN201510317277.1A Withdrawn CN104931768A (en) | 2014-11-26 | 2015-06-10 | Common source amplification circuit-based phase-shift type prompting and protection electric system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510317277.1A Withdrawn CN104931768A (en) | 2014-11-26 | 2015-06-10 | Common source amplification circuit-based phase-shift type prompting and protection electric system |
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| CN (2) | CN104407204A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931768A (en) * | 2014-11-26 | 2015-09-23 | 成都冠深科技有限公司 | Common source amplification circuit-based phase-shift type prompting and protection electric system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422549B (en) * | 2015-12-09 | 2017-05-24 | 西安建筑科技大学 | Alarm of hydraulic system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01279628A (en) * | 1988-05-02 | 1989-11-09 | Hitachi Ltd | Current switching circuit |
| US7902923B2 (en) * | 2009-03-19 | 2011-03-08 | Qualcomm, Incorporated | Common-gate common-source amplifier |
| CN103117711B (en) * | 2013-01-29 | 2015-05-20 | 天津大学 | Monolithic integrated radio frequency high-gain low-noise amplifier |
| CN104199501A (en) * | 2014-08-25 | 2014-12-10 | 长沙瑞达星微电子有限公司 | High-output impedance current source circuit |
| CN104407204A (en) * | 2014-11-26 | 2015-03-11 | 成都创图科技有限公司 | Phase-shift prompt protection electrical system |
-
2014
- 2014-11-26 CN CN201410695926.7A patent/CN104407204A/en active Pending
-
2015
- 2015-06-10 CN CN201510317277.1A patent/CN104931768A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931768A (en) * | 2014-11-26 | 2015-09-23 | 成都冠深科技有限公司 | Common source amplification circuit-based phase-shift type prompting and protection electric system |
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| CN104931768A (en) | 2015-09-23 |
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Application publication date: 20150311 |