CN102594168A - Rectification voltage-stabilization control circuit - Google Patents
Rectification voltage-stabilization control circuit Download PDFInfo
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- CN102594168A CN102594168A CN201210038678XA CN201210038678A CN102594168A CN 102594168 A CN102594168 A CN 102594168A CN 201210038678X A CN201210038678X A CN 201210038678XA CN 201210038678 A CN201210038678 A CN 201210038678A CN 102594168 A CN102594168 A CN 102594168A
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Abstract
The invention provides a rectification voltage-stabilization control circuit which has a simple structure, moderate size and high reliability and is suitable for working under high-temperature environment. The rectification voltage-stabilization control circuit comprises an MPU (Micro Processor Unit), a silicon controlled rectification unit, a pulse triggering control unit, a pulse triggering unit, a temperature feedback unit and a voltage-current variable feedback unit, wherein the MPU, the pulse triggering control unit, the pulse triggering unit and the silicon controlled rectification unit are connected in series; the temperature feedback unit and the voltage-current variable feedback unit are respectively connected with the MPU; and the MPU outputs a control signal for adjusting pulse triggering frequency as well as another control signal for controlling the pulse triggering control unit to be on and off, according to the temperature value measured by the temperature feedback unit as well as the voltage value and the current value which are measured by the voltage-current variable feedback unit.
Description
Technical field
The present invention relates to the galvanic circuit that a kind of AC rectification voltage stabilizing with mud turbine generator output in the Process of Oil Well Drilling becomes fixing output.
Background technology
At present, utilize mud flow drive turbogenerator rotation in the drilling process, generator is converted into electric energy with mechanical energy, and then the output AC electricity, thereby the flow velocity of control mud is realized the indirect peak power output of controlling generator.Because the output characteristic of generator is vulnerable to the influence of mud speed rate; There is the bigger phenomenon of output voltage peak-to-peak value, frequency range fluctuation; The output electric energy can't directly supply the terminal to use; The direct current output of fixed amplitude be need be converted into through the rectifying and voltage-stabilizing device, and then the debugging and the use of terminate load equipment made things convenient for.But existing rectifying and voltage-stabilizing device volume is big, operating temperature range is narrow and heat dissipation capacity is bigger.
Summary of the invention
The objective of the invention is to overcome deficiencies such as traditional power rectifier stable-pressure device volume is excessive, operating temperature range is narrow and heat dissipation capacity is bigger, a kind of simple in structure, moderate dimensions is provided, reliability is high and adapts to the rectifying and voltage-stabilizing control circuit of operation under the hot environment.
The technical solution adopted for the present invention to solve the technical problems is: a kind of rectifying and voltage-stabilizing control circuit comprises MPU processing unit, silicon controlled rectifier unit, Pulse-trigger control unit, pulse-triggered unit, Temperature Feedback unit and electric current and voltage variable feedback unit; MPU processing unit, Pulse-trigger control unit, pulse-triggered unit and silicon controlled rectifier unit connect successively, and the Temperature Feedback unit is connected with the MPU processing unit respectively with electric current and voltage variable feedback unit; Said MPU processing unit is according to the measured temperature value in Temperature Feedback unit, measured magnitude of voltage and the current value of electric current and voltage variable feedback unit, the control signal of the control signal of output adjustment pulse-triggered frequency and the break-make of control impuls trigger control unit.
Above-mentioned rectifying and voltage-stabilizing control circuit also comprises the isolated from power unit, and said isolated from power unit is connected with MPU processing unit, Pulse-trigger control unit respectively.
Said isolated from power unit comprises transformer, bridge rectifier, three terminal regulator and the power isolation module that connects successively.
Said Pulse-trigger control unit comprises Pulse-trigger control module, oscillating circuit, holding wire sexual isolation amplification module and the differential amplifier circuit that connects successively.
Said differential amplifier circuit comprises operational amplifier U2 and is arranged on the reference voltage module that operational amplifier U2 relatively holds.
Said reference voltage module comprises provides the voltage stabilizing didoe of reference voltage Z1; And being used to reduce temperature compensated diode V2 and the temperature compensated diode V3 of variations in temperature to the influence of reference voltage, said temperature compensated diode V2 and temperature compensated diode V3 series connection back are parallelly connected with voltage stabilizing didoe Z1.
Said holding wire sexual isolation amplification module comprises optical coupler IC3 and the operational amplifier U1 that is connected optical coupler IC3 output, and the input of optical coupler IC3 is connected with oscillating circuit.
Said Pulse-trigger control module comprises optical coupler IC4, clamp diode V1 and operational amplifier U3, and clamp diode V1 is connected between the input of relatively holding of operational amplifier U3 and optical coupler IC4.
The invention has the beneficial effects as follows that circuit structure is simple, number of devices is less, and components and parts possess the high-temperature operation environmental requirement, volume compact, and the integral heat sink amount is less, is fit to be installed in the inner space that underground equipment is elongated, seal.Realization is regulated, is limited and protect wide voltage, broadband signal under the hot environment.
Description of drawings
Fig. 1 is a circuit structure block diagram of the present invention;
Fig. 2 is the schematic diagram of isolated from power unit;
Fig. 3 is the schematic diagram of Pulse-trigger control unit.
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is described in further detail, but execution mode of the present invention is not limited thereto.
Embodiment
Rectifying and voltage-stabilizing control circuit of the present invention, as shown in Figure 1, comprise MPU (microprocessor) processing unit, isolated from power unit, silicon controlled rectifier unit, Pulse-trigger control unit, pulse-triggered unit, Temperature Feedback unit and electric current and voltage variable feedback unit.MPU processing unit, Pulse-trigger control unit, pulse-triggered unit and silicon controlled rectifier unit connect successively; The Temperature Feedback unit is connected with the MPU processing unit respectively with electric current and voltage variable feedback unit, and the isolated from power unit is connected with MPU processing unit, Pulse-trigger control unit respectively.
Ac input signal divides two-way, and one the tunnel after the isolated from power cell processing, to Pulse-trigger control unit and MPU processing unit stable power supply is provided; Pulse-triggered unit and the power supply of silicon controlled rectifier unit are given in another road.The silicon controlled conducting is triggered by the thyristor trigger element and realizes; Controllable silicon triggering and conducting frequency is made corresponding adjusting by the Pulse-trigger control unit according to the feedback variable controller state of voltage/current variable feedback unit, thereby reaches the purpose of adjustment back output direct current of voltage regulation.
Pulse-trigger control unit controls pulse-triggered unit is to silicon controlled rectifier unit output trigger impulse, and the properties influence of trigger impulse the output characteristic of silicon controlled rectifier unit, realizes the hardware adjustment to main circuit; The silicon controlled rectifier unit becomes the stable direct current output of voltage with exchanging input rectifying under the control of pulse-triggered unit.
The MPU processing unit is according to the measured temperature value in Temperature Feedback unit, measured magnitude of voltage and the current value of electric current and voltage variable feedback unit, and the paired pulses trigger control unit is made correspondingly adjustment.MPU processing unit output two path control signal, the one tunnel is coupled in the Pulse-trigger control unit adjustment pulse-triggered frequency, the output voltage purpose that realizes regulating main circuit silicon controlled rectifier unit through linear optocoupler; Another road control signal is the switching value that circuit protection is provided; This switching value is according to the situation such as temperature, electric current and voltage of circuit; Its state is being controlled the break-make of Pulse-trigger control unit through physically-isolated mode, realizes functions such as overtemperature prote, overcurrent protection, overvoltage protection and under-voltage protection.The Temperature Feedback unit adopts intelligent temperature sensor in the present embodiment, and circuit temperature measured value single bus is exported to the MPU processing unit.
As shown in Figure 2, the isolated from power unit comprises transformer, bridge rectifier, three terminal regulator and the power isolation module that connects successively.In the isolated from power unit, exchange input after transformer (T1) step-down, bridge rectifier, three terminal regulator (IC1) voltage stabilizing and power isolation module (IC2) are isolated, obtain stable digital circuit power supply.This power supply possesses wide voltage input, isolates the voltage stabilizing output characteristic, the power supply stability of enhanced system, fail safe, and the anti-interference of raising digital circuit is suitably for control circuit and partly supplies power.
As shown in Figure 3, the Pulse-trigger control unit comprises Pulse-trigger control module, oscillating circuit, holding wire sexual isolation amplification module and the differential amplifier circuit that connects successively, adopts the control mode of temperature, electric current and the multiple feedback of voltage.The Pulse-trigger control unit comprises following function:
(1) voltage stabilizing didoe Z1 provides reference voltage, and temperature compensated diode V2 and temperature compensated diode V3 are used to reduce the influence of variations in temperature to reference voltage; Said reference voltage module mainly is made up of Z1, V2 and V3;
(2) the sampled signal Ui1 that provides direct current to export; Ui1 is through the microprocessor MPU Filtering Processing; High-precision reference voltage module, operational amplifier U2 and peripheral circuit constitute differential amplifier circuit; Signal after the amplification is as the control variables of control trigger impulse frequency, and wherein the reference voltage module is arranged on the relatively end of operational amplifier U2;
(3) optical coupler IC3 constitutes holding wire sexual isolation amplification module with the operational amplifier U1 that is connected optical coupler IC3 output, with the control variables isolation transmit of pulse to the pulse-triggered unit;
(4) be the pulse signal of the oscillating circuit generation changeable frequency of core composition with Q1, the current value that changes the IC3 left side diode of flowing through can change the triggering frequency of pulse; Trigger impulse Up is controlling the silicon controlled conducting state for triggering the input variable of silicon controlled rectifier unit;
(5) Ui2 is a microprocessor MPU output signal, as the switching value of control impuls trigger element, comprises temperature, overcurrent, overvoltage and state such as under-voltage; V1 is a clamp diode; Optical coupler IC4, clamp diode V1, operational amplifier U3 constitute the Pulse-trigger control module; Clamp diode V1 is connected between the input of relatively holding of operational amplifier U3 and optical coupler IC4; This module realizes the controlled function of switching variable Ui2 paired pulses circuits for triggering, and wherein, the signal of telecommunication of on-off action also possesses physical isolation.
The foregoing description is a preferred implementation of the present invention; But execution mode of the present invention is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (8)
1. a rectifying and voltage-stabilizing control circuit is characterized in that, comprises MPU processing unit, silicon controlled rectifier unit, Pulse-trigger control unit, pulse-triggered unit, Temperature Feedback unit and electric current and voltage variable feedback unit; MPU processing unit, Pulse-trigger control unit, pulse-triggered unit and silicon controlled rectifier unit connect successively, and the Temperature Feedback unit is connected with the MPU processing unit respectively with electric current and voltage variable feedback unit; Said MPU processing unit is according to the measured temperature value in Temperature Feedback unit, measured magnitude of voltage and the current value of electric current and voltage variable feedback unit, the control signal of the control signal of output adjustment pulse-triggered frequency and the break-make of control impuls trigger control unit.
2. rectifying and voltage-stabilizing control circuit according to claim 1 is characterized in that, also comprises the isolated from power unit, and said isolated from power unit is connected with MPU processing unit, Pulse-trigger control unit respectively.
3. rectifying and voltage-stabilizing control circuit according to claim 2 is characterized in that, said isolated from power unit comprises transformer, bridge rectifier, three terminal regulator and the power isolation module that connects successively.
4. rectifying and voltage-stabilizing control circuit according to claim 1 is characterized in that, said Pulse-trigger control unit comprises Pulse-trigger control module, oscillating circuit, holding wire sexual isolation amplification module and the differential amplifier circuit that connects successively.
5. rectifying and voltage-stabilizing control circuit according to claim 4 is characterized in that, said differential amplifier circuit comprises operational amplifier U2 and is arranged on the reference voltage module that operational amplifier U2 relatively holds.
6. rectifying and voltage-stabilizing control circuit according to claim 5; It is characterized in that; Said reference voltage module comprises provides the voltage stabilizing didoe of reference voltage Z1; And being used to reduce temperature compensated diode V2 and the temperature compensated diode V3 of variations in temperature to the influence of reference voltage, said temperature compensated diode V2 and temperature compensated diode V3 series connection back are parallelly connected with voltage stabilizing didoe Z1.
7. rectifying and voltage-stabilizing control circuit according to claim 4; It is characterized in that; Said holding wire sexual isolation amplification module comprises optical coupler IC3 and the operational amplifier U1 that is connected optical coupler IC3 output, and the input of optical coupler IC3 is connected with oscillating circuit.
8. rectifying and voltage-stabilizing control circuit according to claim 4; It is characterized in that; Said Pulse-trigger control module comprises optical coupler IC4, clamp diode V1 and operational amplifier U3, and clamp diode V1 is connected between the input of relatively holding of operational amplifier U3 and optical coupler IC4.
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| CN201210038678.XA CN102594168B (en) | 2012-02-20 | 2012-02-20 | Rectification voltage-stabilization control circuit |
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| CN201210038678.XA CN102594168B (en) | 2012-02-20 | 2012-02-20 | Rectification voltage-stabilization control circuit |
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| CN102594168B CN102594168B (en) | 2014-06-18 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105389963A (en) * | 2015-12-02 | 2016-03-09 | 宁夏共享集团股份有限公司 | Multipath voice alarm system |
| CN107508349A (en) * | 2017-08-31 | 2017-12-22 | 苏州惠华电子科技有限公司 | A kind of state-detection and control system of the special wire harness of discharge and recharge |
| CN107544336A (en) * | 2017-09-15 | 2018-01-05 | 无锡七百二十度科技有限公司 | A kind of voltage regulating station data processing and control system based on RTU |
| CN107579595A (en) * | 2017-08-30 | 2018-01-12 | 苏州麦喆思科电子有限公司 | A kind of accumulator cell charging and discharging monitoring system based on switch cubicle |
| CN107655939A (en) * | 2017-07-31 | 2018-02-02 | 无锡昊瑜节能环保设备有限公司 | A kind of inexpensive dissolved oxygen sensing detection device |
| CN107656466A (en) * | 2017-07-31 | 2018-02-02 | 无锡昊瑜节能环保设备有限公司 | A kind of inexpensive sensing device for being used to measure water oxygen content |
| CN107678361A (en) * | 2017-10-31 | 2018-02-09 | 无锡七百二十度科技有限公司 | A kind of network monitoring system for things |
| CN107734048A (en) * | 2017-10-31 | 2018-02-23 | 无锡七百二十度科技有限公司 | One kind supports the multi-functional Internet of Things monitor terminal of conglomerate |
| CN107740999A (en) * | 2017-10-31 | 2018-02-27 | 无锡七百二十度科技有限公司 | A kind of automation data intelligent monitor system |
| CN107765755A (en) * | 2017-11-24 | 2018-03-06 | 无锡七百二十度科技有限公司 | A kind of voltage regulating station data monitoring system based on MPPT |
| CN107770289A (en) * | 2017-11-24 | 2018-03-06 | 无锡七百二十度科技有限公司 | A kind of Internet of Things automation data intelligent monitor system |
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| CN202524309U (en) * | 2012-02-20 | 2012-11-07 | 中天启明石油技术有限公司 | Rectification voltage-stabilization control circuit |
| CN202661910U (en) * | 2012-03-07 | 2013-01-09 | 一元电气有限公司 | Alternating current voltage stabilizer circuit |
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| CN102139244A (en) * | 2011-02-16 | 2011-08-03 | 王红星 | High frequency power supply for electric dust removal |
| CN202524309U (en) * | 2012-02-20 | 2012-11-07 | 中天启明石油技术有限公司 | Rectification voltage-stabilization control circuit |
| CN202661910U (en) * | 2012-03-07 | 2013-01-09 | 一元电气有限公司 | Alternating current voltage stabilizer circuit |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105389963A (en) * | 2015-12-02 | 2016-03-09 | 宁夏共享集团股份有限公司 | Multipath voice alarm system |
| CN107655939A (en) * | 2017-07-31 | 2018-02-02 | 无锡昊瑜节能环保设备有限公司 | A kind of inexpensive dissolved oxygen sensing detection device |
| CN107656466A (en) * | 2017-07-31 | 2018-02-02 | 无锡昊瑜节能环保设备有限公司 | A kind of inexpensive sensing device for being used to measure water oxygen content |
| CN107579595A (en) * | 2017-08-30 | 2018-01-12 | 苏州麦喆思科电子有限公司 | A kind of accumulator cell charging and discharging monitoring system based on switch cubicle |
| CN107508349A (en) * | 2017-08-31 | 2017-12-22 | 苏州惠华电子科技有限公司 | A kind of state-detection and control system of the special wire harness of discharge and recharge |
| CN107544336A (en) * | 2017-09-15 | 2018-01-05 | 无锡七百二十度科技有限公司 | A kind of voltage regulating station data processing and control system based on RTU |
| CN107678361A (en) * | 2017-10-31 | 2018-02-09 | 无锡七百二十度科技有限公司 | A kind of network monitoring system for things |
| CN107734048A (en) * | 2017-10-31 | 2018-02-23 | 无锡七百二十度科技有限公司 | One kind supports the multi-functional Internet of Things monitor terminal of conglomerate |
| CN107740999A (en) * | 2017-10-31 | 2018-02-27 | 无锡七百二十度科技有限公司 | A kind of automation data intelligent monitor system |
| CN107765755A (en) * | 2017-11-24 | 2018-03-06 | 无锡七百二十度科技有限公司 | A kind of voltage regulating station data monitoring system based on MPPT |
| CN107770289A (en) * | 2017-11-24 | 2018-03-06 | 无锡七百二十度科技有限公司 | A kind of Internet of Things automation data intelligent monitor system |
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| CN102594168B (en) | 2014-06-18 |
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