CN201654575U - Intelligent temperature driver - Google Patents
Intelligent temperature driver Download PDFInfo
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- CN201654575U CN201654575U CN2009202994285U CN200920299428U CN201654575U CN 201654575 U CN201654575 U CN 201654575U CN 2009202994285 U CN2009202994285 U CN 2009202994285U CN 200920299428 U CN200920299428 U CN 200920299428U CN 201654575 U CN201654575 U CN 201654575U
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Abstract
The utility model belongs to the technical field of automatic control and relates to an intelligent temperature driver. The driver comprises a signal acquisition circuit, a singlechip circuit, an enable signal detection and judgment circuit and a thyristor output control circuit, wherein the enable signal detection and judgment circuit can receive enable signals under the control of the singlechip circuit, and judge and output the signals to the singlechip circuit; a singlechip can give out a command to open the channel of the signal acquisition circuit; the signal acquisition circuit can convert a temperature analogue value into 0-5V analog voltage signals matched with the singlechip, and then send the analog voltage signals into an A/D converter in the singlechip, which can process the analog voltage signals into digital signals; and the singlechip circuit can compare a collected temperature signal value with an upper limit voltage parameter value and a lower limit reference voltage parameter value for the temperature controlled by a system, and then output a PWM wave to the thyristor output control circuit to control the conduction and the blocking time of a thyristor according to the comparison result, thereby controlling a load temperature. The intelligent temperature driver has the advantages of high signal acquisition speed, high control accuracy and strong load compatibility.
Description
Technical field
The utility model belongs to the automatic control technology field, relates to a kind of temperature controlled temperature intelligent driver that is used for.
Background technology
It is commercial production robotization device commonly used that temperature is driven device, generally by temperature sensor detected temperatures signal, with the comparison of set-point, sends regulating command and gives heater element, thereby reach the effect of control temperature then.
Domesticly be used for temperature controlled driver and exist always that image data lags behind, restricted problem is controlled in not high, the compatible load of degree of accuracy, as can only be with in resistive, capacitive, the inductive load a kind of, and can not be compatible.For this reason, just need design to use different circuit at different loads, because general temperature control product all adopts the logical separate circuit design, this just has limitation in the degree of accuracy and the promptness aspect of image data sort circuit, even adopt the bleeder circuit of sensor acquisition signal to carry out data acquisition, its precision also can only reach 1 ℃ degree of regulation, and the quick variation control section of temperature is difficult in time move reach the adjusting purpose often.Simultaneously the variation meeting of load brings very big influence to circuit during circuit working, makes the inaccurate operating accuracy that influences circuit of test data.Need reach the purpose of accurate control according to the different different temperature control circuits of load characteristic design.
The utility model content:
The purpose of this utility model provides that a kind of signals collecting speed is fast, control accuracy is high, the compatible strong temperature intelligent driver of load.
Temperature intelligent driver provided by the utility model comprises signal acquisition circuit, single chip circuit, be characterized in also having enable signal detection decision circuitry, thyristor output control circuit in the temperature intelligent driver, the output order sheet machine circuit of enable signal detection decision circuitry, single chip circuit also joins with signals collecting change-over circuit and thyristor output control circuit.
Between power input AVCC, the AREF of single-chip microcomputer U5, be provided with L and the filtering circuit of forming by inductance L 1, capacitor C 11-C13 of falling L in the described single chip circuit.
Described signal acquisition circuit is made up of voltage divider signal acquisition circuit and accurate signal processing circuit, described voltage divider signal acquisition circuit is made of two stabilivolt D1, D2 and the resistance R 1-R5 of reversal connection, the negative pole of stabilivolt D1 meets the output AI of current transformer, the minus earth of stabilivolt D2, by resistance R 1, R2, two component volt circuits and resistance R 5 that resistance R 3, R4 constitute are in parallel with two stabilivolt D1, D2 of reversal connection, and acquired signal is by the node output of two bleeder circuits; Described accurate signal processing circuit is formed the identical height two-way acquired signal treatment circuit of structure by operational amplifier U1-U4 and peripheral component, the first order of this signal processing circuit is by operational amplifier U1, diode D3, resistance R 6, R7 and operational amplifier U4, diode D4, resistance R 12, R13 constitutes, operational amplifier U1, the inverting input of U4 is respectively by resistance R 6, R12 connects the output of two component volt circuits, diode D3, the positive pole of D4 meets operational amplifier U1 respectively, the output terminal of U4, feedback resistance R7, R13 is connected on diode D3 respectively, the negative pole of D4 and operational amplifier U1, between the U4 inverting input; The second level of this signal processing circuit is by operational amplifier U2, filter capacitor C1-C3 resistance R 8-R11 and operational amplifier U3, filter capacitor C4-C6, two voltage followers that structure is identical that resistance R 14-R17 constitutes, resistance R 8, R14 meets diode D3 respectively, the negative pole of D4, and respectively by resistance R 9, R15 meets operational amplifier U2, the in-phase input end of U3, capacitor C 1, C4 is connected on operational amplifier U2 respectively, the inverting input of U3 and resistance R 8, R9 and resistance R 14, between the connected node of R15, capacitor C 2, C5 is connected on operational amplifier U2 respectively, between the in-phase input end and ground of U3, two operational amplifier U2, the inverting input of U3 connects output terminal separately respectively, operational amplifier U2, the output terminal of U3 is respectively by resistance R 10, R16 connects two A/D conversion input ports of single-chip microcomputer U5, resistance R 11, capacitor C 3, resistance R 17, capacitor C 6 respectively and be connected in resistance R 10, between R16 and the ground.
Described enable signal detection decision circuitry is by diode D5, D6, optocoupler Q1, Q2, triode Q3-Q6, capacitor C 7, C8 and resistance R 18-R28 form, positive and negative enable signal EN+, EN-connect the positive pole of optocoupler Q1 luminotron respectively by diode D5, D6, the collector that optocoupler Q1 receives light pipe meets VCC by pull-up resistor R19, meets the signal input PD2 of single-chip microcomputer U5 by output resistance R20; Triode Q3, Q4 and resistance R 18, R21, R22 constitute on-off circuit, the emitter-base bandgap grading of triode Q3, base stage connect base stage, the collector of triode Q4 respectively, resistance R 21, R22 are connected on respectively between emitter, inter-collector and base stage, the emitter-base bandgap grading of triode Q4, resistance R 21 connects the positive pole of optocoupler Q1 luminotron by resistance R 18, and the negative pole of optocoupler Q1 luminotron connects the collector of triode Q3; Constitute driving circuit by triode Q5, resistance R 25-R27, triode Q5 meets the signal output PD3 of single-chip microcomputer U5 by its base resistance R25, the output resistance R27 of driving circuit connects the negative pole of optocoupler Q2 luminotron, the positive pole of optocoupler Q2 luminotron connects the 24V power supply, optocoupler Q2 receives the emitter-base bandgap grading of light pipe, base stage, the collector that collector meets triode Q6 respectively, and the collector of optocoupler Q2 receipts light pipe, triode Q6 connects the resistance R 21 in the on-off circuit.
Described thyristor output control circuit is by triode Q10, optocoupler Q7, thyristor Q8, Q9, diode D7-D10 and resistance R 29-R35 form, triode Q10 meets a PB0 of single-chip microcomputer U5PB mouth by its base resistance R29, resistance R 35 connects the base stage of triode Q10, between emitter-base bandgap grading, the collector of triode Q10 connects the input pin 2 of optocoupler Q7, the input pin 1 of optocoupler Q7 meets power supply VCC by resistance R 30, the output pin 6 of optocoupler Q7 is by resistance R 31, R33, diode D7, D8 connects the control utmost point of thyristor Q8, the output pin 4 of optocoupler Q7 is by resistance R 32, R34, diode D9, D10 connects the control utmost point of thyristor Q9, resistance R 31 connects the negative pole of diode D7, the positive pole of diode D8, resistance R 33 connects the positive pole of diode D7, the control utmost point of the negative pole of diode D8 and thyristor Q8, resistance R 32 connects the negative pole of diode D9, the positive pole of diode D10, resistance R 34 connects the positive pole of diode D9, the control utmost point of the negative pole of diode D10 and thyristor Q9, the negative electrode of thyristor Q8, the anode of thyristor Q9 meets coad connector CON1 by fuse F1, the anode of thyristor Q8, the negative electrode of thyristor Q9 meets coad connector CON2.
The utility model provides the principle of work of temperature intelligent driver and technique effect as follows: single chip circuit is a control core of the present utility model.The enable detection circuit receives the host computer signal under the control of single chip circuit, when enable signal adds fashionable, enable detection circuit judges and output signal are to single chip circuit, single chip circuit receives, detect enable signal after, send instruction and open the signal acquisition circuit passage, the utility model adopts current transformer, voltage divider signal acquisition circuit and the accurate signal processing circuit of being made up of discharge circuit to convert the current signal value of gathering to mate single-chip microcomputer 0-5V analog voltage signal and sends into the A/D converter of single-chip microcomputer inside and be processed into digital signal.In gatherer process, can capture uA level electric current changes, the acquisition precision height, speed is fast, can promptly and accurately feed back Current Temperatures changes, current transformer is passed through in the variation of load temperature, bleeder circuit is gathered electric current, and send into the precision rectifying discharge circuit, the reference voltage parameter value of its final changing voltage value and system's setting is sent into single-chip microcomputer and is compared, judge to thyristor output control circuit output control signal according to comparative result by single chip circuit, the signal of single-chip microcomputer output adopts the conducting of PWM ripple control thyristor, closing time, thereby control load temperature.Owing to adopt the characteristics of zero passage detection technology control thyristor work, effectively solved the purpose that circuit can both accurately be controlled the different attribute load, simultaneously the utility model in circuit, adopted multinomial interference protection measure make the work of temperature-driven device safer, reliable, power consumption reduces greatly.
Description of drawings:
Fig. 1 is the functional-block diagram of temperature intelligent driver provided by the utility model;
Fig. 2 .1-2.6 is the electrical schematic diagram of single-chip microcomputer and interlock circuit among the temperature intelligent driver embodiment one provided by the utility model;
Fig. 2 .1 is the pin wiring diagram of single-chip microcomputer in the single chip circuit;
Fig. 2 .2 is single chip circuit China and foreign countries crystal oscillating circuits;
Fig. 2 .3 is a reset circuit in the single chip circuit;
Fig. 2 .4 is a filtering circuit in the single chip circuit;
Fig. 2 .5 is the anti-jamming circuit that the utility model is provided with;
Fig. 2 .6 is the indicator light circuit by single chip circuit control that the utility model is provided with;
Fig. 3 .1 is the electrical schematic diagram of voltage divider signal acquisition circuit in temperature intelligent driver embodiment one signal acquisition circuit provided by the utility model;
Fig. 3 .2 is the electrical schematic diagram of accurate signal processing circuit in temperature intelligent driver embodiment one signal acquisition circuit provided by the utility model;
Fig. 4 .1 is the electrical schematic diagram of enable signal detection decision circuitry among the temperature intelligent driver embodiment one provided by the utility model;
Fig. 4 .2 is for providing the circuit diagram of reference voltage to single chip circuit among the utility model embodiment one;
Fig. 5 is a thyristor output control circuit electrical schematic diagram among the temperature intelligent driver embodiment one provided by the utility model.
Embodiment:
Below in conjunction with description of drawings enforcement of the present utility model.Temperature intelligent driver provided by the utility model as shown in Figure 1 is by enable signal detection decision circuitry, signal acquisition circuit, single chip circuit and thyristor output control circuit are formed, the output order sheet machine circuit of enable signal detection decision circuitry, single chip circuit also joins with signal acquisition circuit and thyristor output control circuit.Fig. 2 .1-2.6 is the electrical schematic diagram of single-chip microcomputer and interlock circuit among the temperature intelligent driver embodiment one provided by the utility model.Single chip circuit comprises single-chip microcomputer U5, external crystal oscillation circuit, reset circuit, filtering circuit and ISP program download interface etc.Single-chip microcomputer U5 adopts ATMEGA48-10AI, and external crystal oscillation circuit is made up of crystal oscillator Y2, capacitor C 9, C10; Reset circuit is made up of resistance R 39, diode D11 and capacitor C 14, and reset pin adopts electrify restoration circuit; Between power input AVCC, the AREF of single-chip microcomputer U5, be provided with and form L and the filtering circuit of falling L by inductance L 1, capacitor C 11-C13.The utility model also is provided with the anti-jamming circuit that joins with power supply VCC and is made up of capacitor C 15-C20 and resistance R 40, the employing of these measures has comprehensively improved the single-chip microcomputer job stability makes more its work more stable, reliable, has also handled digital-to-analogue problem altogether simultaneously.The utility model also is provided with the indicator light circuit by single chip circuit control, indicator light circuit is formed power light by resistance R 35, LED 1, resistance R 36, LED 2 compositions enable pilot lamp, resistance R 37, LED 3 are formed the underloading pilot lamp, formed overcurrent, crossed thermal light by resistance R 38, LED 4, respectively load open circuit, fault alarm, overcurrent are reported to the police and crossed thermal tripping and monitor, the duty that reflects product very directly perceived is convenient to maintenance, repair.Signal acquisition circuit is made up of the accurate signal processing circuit shown in the voltage divider signal acquisition circuit shown in Fig. 3 .1 and Fig. 3 .2 in the utility model.Referring to Fig. 3 .1, signal acquisition circuit is gathered the feedback signal of current transformer by the voltage divider signal acquisition circuit, bleeder circuit is made of stabilivolt D1, D2 and the resistance R 1-R4 of reversal connection, the negative pole of stabilivolt D1 meets the output AI of current transformer, the minus earth of stabilivolt D2, by resistance R 1, R2, two component volt circuits and the 5th resistance R 5 that R3, R4 constitute are in parallel with stabilivolt D1, the D2 of reversal connection, and the height acquired signal is by the node output of two bleeder circuits.Referring to Fig. 3 .2, the first order of accurate signal processing circuit is made of operational amplifier U1, diode D3, resistance R 6, R7 and operational amplifier U4, diode D4, resistance R 12, R13, the inverting input of operational amplifier U1, U4 connects the output of two component volt circuits respectively by resistance R 6, R12, the positive pole of diode D3, D4 connects the output terminal of operational amplifier U1, U4 respectively, feedback resistance R7, R13 are connected on respectively between the negative pole of diode D3, D4 and operational amplifier U1, U4 inverting input, and this circuit can be gathered very little zero cross signal.The second level of this signal processing circuit is by operational amplifier U2, filter capacitor C1-C3 resistance R 8-R11 and operational amplifier U3, filter capacitor C4-C6, two voltage followers that structure is identical that resistance R 14-R17 constitutes, resistance R 8, R14 meets diode D3 respectively, the negative pole of D4, and respectively by resistance R 9, R15 meets operational amplifier U2, the inverting input of U3, capacitor C 1, C4 is connected on operational amplifier U2 respectively, the inverting input of U3 and resistance R 8, R9 and resistance R 14, between the connected node of R15, two operational amplifier U2, the inverting input of U3 connects its output terminal, operational amplifier U2, the output terminal of U3 is respectively by resistance R 10, R16 meets two A/D conversion input port ADC3 of single-chip microcomputer U5, ADC1, resistance R 11, capacitor C 3, resistance R 17, capacitor C 6 respectively and be connected in resistance R 10, between R16 and the ground.The final signal of gathering is sent into two A/D conversion input ports of single-chip microcomputer U5 respectively through the output of two voltage followers.Operational amplifier amplifier LM6484 four high guaily unit in the accurate signal processing circuit is formed height two-way acquisition process circuit.Fig. 4 .1 is the electrical schematic diagram of enable signal detection decision circuitry.This circuit is by diode D5, D6, optocoupler Q1, Q2, triode Q3-Q6, capacitor C 7, C8 and resistance R 18-R28 form, positive and negative enable signal EN+, EN-connect the positive pole of optocoupler Q1 luminotron respectively by diode D5, D6, the collector that optocoupler Q1 receives light pipe meets VCC by pull-up resistor R19, meets the signal input PD2 of single-chip microcomputer U5 by output resistance R20; Triode Q3, Q4 and resistance R 18, R21, R22 constitute on-off circuit, the emitter-base bandgap grading of triode Q3, base stage connect base stage, the collector of triode Q4 respectively, resistance R 21, R22 are connected on respectively between emitter, inter-collector and base stage, the emitter-base bandgap grading of triode Q4, resistance R 21 by resistance R 18 connect the positive pole of optocoupler Q1 luminotron, the negative pole of optocoupler Q1 luminotron connects the collector of triode Q3; Constitute driving circuit by triode Q5, resistance R 25-R27, triode Q5 meets the signal output PD3 of single-chip microcomputer U5 by its base resistance R25, the output resistance R27 of driving circuit connects the negative pole of optocoupler Q2 luminotron, the positive pole of optocoupler Q2 luminotron connects the 24V power supply, optocoupler Q2 receives the emitter-base bandgap grading of light pipe, base stage, the collector that collector meets triode Q6 respectively, and the collector that optocoupler Q2 receives light pipe, triode Q6 connects the positive pole of optocoupler Q1 luminotron by resistance R 21, R18.When enable signal enables; capacitor C 7 filtering are also passed through diode D5; protection diode D6 enters optocoupler Q1; the break-make of optocoupler Q1 is subjected to the control of single-chip microcomputer signal output PD3 output signal; single-chip microcomputer signal output PD3 output high level is by resistance R 25 during work; R26 opens triode Q5 makes 24V pass through optocoupler Q2; triode Q5 conducting; enable the input signal process simultaneously by triode Q3 and Q4; resistance R 22; R21; the on-off circuit that R18 forms is to NPN triode Q6; the on off state of this pipe is controlled by optocoupler Q2; in case optocoupler Q2 conducting; triode Q6 conducting thereupon; then optocoupler Q1 conducting; the heating signal of optocoupler Q1 output is by pull-up resistor R19; current-limiting resistance R20 is input to single-chip microcomputer PD2 pin, and whole enable signal detection decision circuitry function is finished.The sampling that provides by resistance R 23, R24 and capacitor C 8 is provided among this figure gathers benchmark 1 and sends into Chip Microcomputer A/D and change input port ADC2, sent into Chip Microcomputer A/D and changed input port ADC0 by resistance R 41, capacitor C 21 collection benchmarks 2 among Fig. 4 .2, VR is the upper limit reference signal that host computer is sent among the figure.Optocoupler Q1, Q2 adopt P521 in the enable signal detection decision circuitry, and triode Q3-Q6 adopts the NPN type.Fig. 5 is a thyristor output control circuit schematic diagram.The thyristor output control circuit is by triode Q10, optocoupler Q7, thyristor Q8, Q9, diode D7-D10 and resistance R 29-R35 form, triode Q10 meets a PB0 of PB mouth among the single-chip microcomputer U5 by its base resistance R29, resistance R 35 connects the base stage of triode Q10, between emitter-base bandgap grading, the collector of triode Q10 connects the input pin 2 of optocoupler Q7, the input pin 1 of optocoupler Q7 meets power supply VCC by resistance R 30, the output pin 6 of optocoupler Q7 is by resistance R 31, R33, diode D7, D8 connects the control utmost point of thyristor Q8, the output pin 4 of optocoupler Q7 is by resistance R 32, R34, diode D9, D10 connects the control utmost point of thyristor Q9, resistance R 31 connects the negative pole of diode D7, the positive pole of diode D8, resistance R 33 connects the positive pole of diode D7, the control utmost point of the negative pole of diode D8 and thyristor Q8, resistance R 32 connects the negative pole of diode D9, the positive pole of diode D10, resistance R 34 connects the positive pole of diode D9, the control utmost point of the negative pole of diode D10 and thyristor Q9, the negative electrode of thyristor Q8, the anode of thyristor Q9 meets coad connector CON1 by fuse F1, the anode of thyristor Q8, the negative electrode of thyristor Q9 meets coad connector CON2.Export the PWM wave control signal by the conducting of resistance R 29, R35 control triode Q10, by also conducting successively, shutoff optocoupler Q7 by single-chip microcomputer delivery outlet PB0 during this circuit working, otherwise triode Q10, optocoupler Q7 make when ending input high level triode Q10, optocoupler Q7 open-minded in succession when the PB0 input low level.Open thyristor Q8, the Q9 two control utmost points by resistance R 31-R34, diode D7-D10 when the optocoupler conducting, this moment, two thyristors when the 220V alternating current adds to come in took turns conducting.And control heating load temperature to be exactly dutycycle control thyristor Q8, Q9 ON time by single-chip microcomputer delivery outlet PB0 output PWM ripple reach the purpose that control is heated.When the temperature signal of signals collecting change-over circuit collection surpassed the load set upper temperature limit, single-chip microcomputer will be regulated the dutycycle of PWM by program, shortened the thyristor ON time, and then load temperature is reduced.If the temperature signal that the signals collecting change-over circuit is gathered is on the low side in design temperature down in limited time, will prolong the ON time of thyristor, temperature rises, and has reached the purpose that controlled device is monitored in real time like this, the precision of simultaneous temperature control is higher, can reach 0.01 ℃ of degree of regulation.Because adopt the work of zero passage detection control thyristor, the load of this temperature intelligent driver is compatible strong, can both accurately control the different attribute load.
Temperature intelligent driver provided by the utility model uses photoelectric coupled device in input, output circuit, make input, output have higher electrical isolation and antijamming capability.Two ends in signal acquisition circuit, and other local piezoresisters that adopt absorb point and divide pulse that circuit is impacted.In order to guarantee the work of single-chip microcomputer normal reliable, single chip circuit has adopted external crystal oscillation circuit, added L and the filtering circuit of falling L at power input simultaneously, reset pin adopts electrify restoration circuit, comprehensively improves the single-chip microcomputer job stability and makes more its work more stable, reliable.
Claims (5)
1. temperature intelligent driver, comprise signal acquisition circuit, single chip circuit, be characterized in also having enable signal detection decision circuitry, thyristor output control circuit in the temperature intelligent driver, the output order sheet machine circuit of enable signal detection decision circuitry, single chip circuit also joins with signal acquisition circuit and thyristor output control circuit.
2. temperature intelligent driver according to claim 1 is characterized in that being provided with in the described single chip circuit L and the filtering circuit of being made up of inductance L 1 and capacitor C 11-C13 of falling L between power input AVCC, the AREF of single-chip microcomputer U5.
3. temperature intelligent driver according to claim 1 and 2, it is characterized in that described signal acquisition circuit is made up of voltage divider signal acquisition circuit and accurate signal processing circuit, described voltage divider signal acquisition circuit is made of two stabilivolt D1, D2 and the resistance R 1-R5 of reversal connection, the negative pole of stabilivolt D1 meets the output AI of current transformer, the minus earth of stabilivolt D2, by resistance R 1, R2, two component volt circuits and resistance R 5 that resistance R 3, R4 constitute are in parallel with two stabilivolt D1, D2 of reversal connection, and acquired signal is by the node output of two bleeder circuits; Described accurate signal processing circuit is formed the identical height two-way acquired signal treatment circuit of structure by operational amplifier U1-U4 and peripheral component, the first order of this signal processing circuit is by operational amplifier U1, diode D3, resistance R 6, R7 and operational amplifier U4, diode D4, resistance R 12, R13 constitutes, operational amplifier U1, the inverting input of U4 is respectively by resistance R 6, R12 connects the output of two component volt circuits, diode D3, the positive pole of D4 meets operational amplifier U1 respectively, the output terminal of U4, feedback resistance R7, R13 is connected on diode D3 respectively, the negative pole of D4 and operational amplifier U1, between the inverting input of U4; The second level of this signal processing circuit is by operational amplifier U2, filter capacitor C1-C3, resistance R 8-R11 and operational amplifier U3, filter capacitor C4-C6, resistance R 14-R17 constitutes two voltage followers that structure is identical, resistance R 8, R14 meets diode D3 respectively, the negative pole of D4, and respectively by resistance R 9, R15 meets operational amplifier U2, the in-phase input end of U3, capacitor C 1, C4 is connected on operational amplifier U2 respectively, the inverting input of U3 and resistance R 8, R9 and resistance R 14, between the connected node of R15, capacitor C 2, C5 is connected on operational amplifier U2 respectively, between the in-phase input end and ground of U3, two operational amplifier U2, the inverting input of U3 connects output terminal separately respectively, operational amplifier U2, the output terminal of U3 is respectively by resistance R 10, R16 connects two A/D conversion input ports of single-chip microcomputer U5, resistance R 11, capacitor C 3, resistance R 17, capacitor C 6 respectively and be connected in resistance R 10, between R16 and the ground.
4. temperature intelligent driver according to claim 1 and 2, it is characterized in that described enable signal detection decision circuitry is by diode D5, D6, optocoupler Q1, Q2, triode Q3-Q6, capacitor C 7, C8 and resistance R 18-R28 form, positive and negative enable signal EN+, EN-connect the positive pole of optocoupler Q1 luminotron respectively by diode D5, D6, the collector that optocoupler Q1 receives light pipe meets VCC by pull-up resistor R19, meets the signal input PD2 of single-chip microcomputer U5 by output resistance R20; Triode Q3, Q4, resistance R 18, R21, R22 constitute on-off circuit, the emitter-base bandgap grading of triode Q3, base stage connect base stage, the collector of triode Q4 respectively, resistance R 21, R22 are connected on respectively between emitter, inter-collector and base stage, the emitter-base bandgap grading of triode Q4, resistance R 21 connects the positive pole of optocoupler Q1 luminotron by resistance R 18, and the negative pole of optocoupler Q1 luminotron connects the collector of triode Q3; Constitute driving circuit by triode Q5, resistance R 25-R27, triode Q5 meets the signal output PD3 of single-chip microcomputer U5 by its base resistance R25, the output resistance R27 of driving circuit connects the negative pole of optocoupler Q2 luminotron, the positive pole of optocoupler Q2 luminotron connects the 24V power supply, optocoupler Q2 receives the emitter-base bandgap grading of light pipe, base stage, the collector that collector meets triode Q6 respectively, and the collector of optocoupler Q2 receipts light pipe, triode Q6 connects the resistance R 21 in the on-off circuit.
5. temperature intelligent driver according to claim 1 and 2, it is characterized in that described thyristor output control circuit is by triode Q10, optocoupler Q7, thyristor Q8, Q9, diode D7-D10 and resistance R 29R35 form, triode Q10 meets a PB0 of the PB mouth of single-chip microcomputer U5 by its base resistance R29, resistance R 35 is connected on the base stage of triode Q10, between emitter-base bandgap grading, the collector of triode Q10 connects the input pin 2 of optocoupler Q7, the input pin 1 of optocoupler Q7 meets power supply VCC by resistance R 30, the output pin 6 of optocoupler Q7 is by resistance R 31, R33, diode D7, D8 connects the control utmost point of thyristor Q8, the output pin 4 of optocoupler Q7 is by resistance R 32, R34, diode D9, D10 connects the control utmost point of thyristor Q9, resistance R 31 connects the negative pole of diode D7, the positive pole of diode D8, resistance R 33 connects the positive pole of diode D7, the control utmost point of the negative pole of diode D8 and thyristor Q8, resistance R 32 connects the negative pole of diode D9, the positive pole of diode D10, resistance R 34 connects the positive pole of diode D9, the control utmost point of the negative pole of diode D10 and thyristor Q9, the negative electrode of thyristor Q8, the anode of thyristor Q9 meets coad connector CON1 by fuse F1, the anode of thyristor Q8, the negative electrode of thyristor Q9 meets coad connector CON2.
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| CN2009202994285U CN201654575U (en) | 2009-12-18 | 2009-12-18 | Intelligent temperature driver |
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| CN2009202994285U CN201654575U (en) | 2009-12-18 | 2009-12-18 | Intelligent temperature driver |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049658A (en) * | 2013-03-14 | 2014-09-17 | 深圳市海洋王照明工程有限公司 | Precision voltage amplifying circuit |
| CN104571202A (en) * | 2015-01-05 | 2015-04-29 | 杭州电子科技大学 | ARM-based temperature collection control system and method |
| CN107132863A (en) * | 2017-06-30 | 2017-09-05 | 应光森 | A kind of thermostatic control system based on semiconductor refrigerating technology |
| CN109798984A (en) * | 2019-03-28 | 2019-05-24 | 星凯电气有限公司 | A kind of GGD bus of low-voltage switch cabinet contact temperature detection device |
| CN109831183A (en) * | 2019-03-27 | 2019-05-31 | 河南天硕机电设备工程有限公司 | A kind of signal filter circuit of grain air conditioner intelligent management system |
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2009
- 2009-12-18 CN CN2009202994285U patent/CN201654575U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049658A (en) * | 2013-03-14 | 2014-09-17 | 深圳市海洋王照明工程有限公司 | Precision voltage amplifying circuit |
| CN104571202A (en) * | 2015-01-05 | 2015-04-29 | 杭州电子科技大学 | ARM-based temperature collection control system and method |
| CN107132863A (en) * | 2017-06-30 | 2017-09-05 | 应光森 | A kind of thermostatic control system based on semiconductor refrigerating technology |
| CN109831183A (en) * | 2019-03-27 | 2019-05-31 | 河南天硕机电设备工程有限公司 | A kind of signal filter circuit of grain air conditioner intelligent management system |
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