CN202696530U - Digitalized direct-current regulator - Google Patents
Digitalized direct-current regulator Download PDFInfo
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- CN202696530U CN202696530U CN2012203552876U CN201220355287U CN202696530U CN 202696530 U CN202696530 U CN 202696530U CN 2012203552876 U CN2012203552876 U CN 2012203552876U CN 201220355287 U CN201220355287 U CN 201220355287U CN 202696530 U CN202696530 U CN 202696530U
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- current
- current regulator
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- chip microcomputer
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Abstract
The utility model relates to a digitalized direct-current regulator. A two-phase alternating-current 380V voltage input is used; digital control is used in the digitalized direct-current regulator; and the current regulator is characterized in that current closed-loop control is adopted and a constant-current source is output. A main loop is a thyristor semi-control bridge type rectifier circuit, and controller integrated information is displayed by a four-bit digital tube on a panel. The output current has three gears in total, and the output current at each gear can be continuously adjusted from 0A to 25A. The output current is adjusted by a key, and a set step length is 0.01A. The current regulator also has functions such as output current displaying as well as fault alarming information and thyristor pulse triggering, and the functions are achieved by using a single chip microcomputer module ATMEGA16 via a software set. The current regulator is mainly used for a speed regulation and control system of a crane translating mechanism and a coke conveying trolley vortex speed regulation system of a coking system, can also be used as a constant-current source and can also be used as a direct-current motor magnet exciting coil power supply.
Description
Technical field
The utility model belongs to electronic technology field, is specifically related to a kind ofly when being mainly used in crane translating device eddy speed regulating system, and electromotor velocity can be regulated arbitrarily, speed stable Digital DC current regulator.
Background technology
Present translational mechanism of crane eddy speed regulating control system, the magnet exciting coil power supply of eddy current motor, the general ZD-002B DC current regulator that adopts my company to produce. by changing the numerical value of output DC stream, thereby change the size of current of eddy current motor excitation coil, reach the size of regulating its braking moment, play the speed governing effect.Because this product average anode current adopts potentiometer to regulate, during variation of ambient temperature parameter drift large, on-the-spot dust and vibration all affect its parameter to be needed often to regulate.The employing Digital Control is optimal selection.
The utility model content
For the problems referred to above, it is a kind of when being mainly used in crane translating device eddy speed regulating system that main purpose of the present utility model is to provide, and electromotor velocity can be regulated arbitrarily, speed stable Digital DC current regulator.
The utility model solves above-mentioned technical problem by following technical proposals: a kind of Digital DC current regulator, described adjuster has adopted the input of two-phase alternating current 380V voltage, voltage input end is respectively L1 and L2, the reactor L of Eliminate highter harmonic is installed on the sub-L1 branch road of described voltage input end, the sub-L1 of voltage input end is divided into two-way, one the tunnel is connected with diode D1, and another road is connected with thyristor SCR1; The sub-L2 of voltage input end is divided into two-way, and one the tunnel is connected with diode D2, and another road is connected with thyristor SCR2, and diode D1, D2 and thyristor SCR1, SCR2 form single-phase half-controlled bridge-type rectification circuit; Described Digital DC current regulator also comprises the single-chip microcomputer IC1 that produces trigger impulse, single-chip microcomputer IC1 removes to trigger thyristor SCR1, SCR2 through the trigger that power amplifier module A5, pulse transformer modules A 6 electronic circuits form, described Digital DC current regulator also comprises current detection circuit, current detection circuit comprises modules A 8, the operational amplifier modules A 7 that current conversion is become voltage, the output of operational amplifier modules A 7 connects single-chip microcomputer IC1, also is connected with display module A9 on the single-chip microcomputer IC1.
In specific embodiment of the utility model, the described modules A 8 employing Hall elements that current conversion become voltage.
In specific embodiment of the utility model, described diode D1, D2 and thyristor SCR1, SCR2 adopt the half-controlled bridge module.
Positive progressive effect of the present utility model is: the Digital DC current regulator that the utility model provides has the following advantages:
The utility model adopts digital control, and characteristics are that this device adopts current closed-loop control, and output is constant-current source device.Major loop adopts thyristor half-controlling bridged rectifier circuit, by 4 nixietube display controller integrated informations on the panel.Output current is totally three gears, and each gear output current 0-25A is adjustable continuously.Output current is regulated and is adopted button, and it is 0.01A that step-length is set.And output current demonstration and the functions such as fault alarm information and thyristor pulse-triggered are arranged, and all adopt one-chip computer module ATMEGA16, by software the realization above-mentioned functions is set.
The utility model is mainly used in speed-adjusting and control system and the coking system coke pushing dolly eddy speed regulating system of translational mechanism of crane.Also can be used as constant-current source and use, also can be used as the power supply of DC motor magnet exciting coil.
Description of drawings
Fig. 1 is schematic block circuit diagram of the present utility model.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
Fig. 1 is schematic block circuit diagram of the present utility model, and as shown in Figure 1: the utility model has adopted the input of two-phase alternating current 380V voltage, by L reactor filtering Eliminate highter harmonic.Diode D1, D2 and thyristor SCR1, SCR2 form single-phase half-controlled bridge-type rectification circuit.Thyristor and diode adopt half-controlled bridge module, model MCD56 rated current 50A.
Thyristor is controlled by trigger impulse, produce trigger impulse by single-chip microcomputer IC1, the trigger that forms through power amplifier module A5, pulse transformer modules A 6 electronic circuits removes to trigger each thyristor, by changing the phase-triggered angle of thyristor, makes output voltage adjustable continuously from 0V to the rated voltage.This device is constant-current source output, the current closed-loop regulating system that regulating loop adopts current regulator and Current Negative Three-Point Capacitance to consist of, and this system is all realized by software.Current detection circuit mainly is comprised of through operational amplifier modules A 7 modules A 8 that current conversion is become voltage, voltage.Become current conversion the modules A 8 of voltage to adopt Hall element, current conversion is become voltage.Hall element plays weak electrical loop and the isolation of forceful electric power loop, guarantees to use safety, prevent that the high voltage string is in the low-voltage loop simultaneously.Hall element output voltage converts digital signal to by the inner A/D converter of single-chip microcomputer after operational amplifier modules A 7 is processed.Finish current feedback by data processor, the functions such as electric current demonstration and field loss protection.Electric current output has respectively the gear of three independent outputs, and each gear output current 0 ~ 25A is adjustable continuously, can set by button AJ.The control of each gear is by outside terminal 10,11,12,13 totally 4 Terminal controls, control power supply AC220V.Gear signal through optical coupling module A10 isolation, is input to the single-chip microcomputer input interface by gear relay K 1, K2, K3 output contact, finishes gear by internal processing program and regulates.Power unit A1 module adopts transformer pressure-reducing, and bridge rectifier filtering produces P24V voltage and N24V voltage, and the pulse transformer power supply is provided.A2, A3, A4 Voltage stabilizing module produce respectively P15V, N15V, N5V voltage, working power are provided for respectively the operational amplifier single-chip microcomputer.
The utility model adopts digital control, and characteristics are that this device adopts current closed-loop control, and output is constant-current source device.Major loop adopts thyristor half-controlling bridged rectifier circuit, by 4 nixietube display controller integrated informations on the panel.Output current is totally three gears, and each gear output current 0-25A is adjustable continuously.Output current is regulated and is adopted button, and it is 0.01A that step-length is set.And output current demonstration and the functions such as fault alarm information and thyristor pulse-triggered are arranged, and all adopt one-chip computer module ATMEGA16, by software the realization above-mentioned functions is set.
The utility model is mainly used in speed-adjusting and control system and the coking system coke pushing dolly eddy speed regulating system of translational mechanism of crane.Also can be used as constant-current source and use, also can be used as the power supply of DC motor magnet exciting coil.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. Digital DC current regulator, it is characterized in that: described adjuster has adopted the input of two-phase alternating current 380V voltage, voltage input end is respectively L1 and L2, the reactor L of Eliminate highter harmonic is installed on the sub-L1 branch road of described voltage input end, the sub-L1 of voltage input end is divided into two-way, one the tunnel is connected with diode D1, and another road is connected with thyristor SCR1; The sub-L2 of voltage input end is divided into two-way, and one the tunnel is connected with diode D2, and another road is connected with thyristor SCR2, and diode D1, D2 and thyristor SCR1, SCR2 form single-phase half-controlled bridge-type rectification circuit; Described Digital DC current regulator also comprises the single-chip microcomputer IC1 that produces trigger impulse, single-chip microcomputer IC1 removes to trigger thyristor SCR1, SCR2 through the trigger that power amplifier module A5, pulse transformer modules A 6 electronic circuits form, described Digital DC current regulator also comprises current detection circuit, current detection circuit comprises modules A 8, the operational amplifier modules A 7 that current conversion is become voltage, the output of operational amplifier modules A 7 connects single-chip microcomputer IC1, also is connected with display module A9 on the single-chip microcomputer IC1.
2. Digital DC current regulator according to claim 1 is characterized in that: the described modules A 8 employing Hall elements that current conversion become voltage.
3. Digital DC current regulator according to claim 1 is characterized in that: described diode D1, D2 and thyristor SCR1, SCR2 employing half-controlled bridge module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203552876U CN202696530U (en) | 2012-07-20 | 2012-07-20 | Digitalized direct-current regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203552876U CN202696530U (en) | 2012-07-20 | 2012-07-20 | Digitalized direct-current regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202696530U true CN202696530U (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203552876U Expired - Fee Related CN202696530U (en) | 2012-07-20 | 2012-07-20 | Digitalized direct-current regulator |
Country Status (1)
| Country | Link |
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| CN (1) | CN202696530U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576733A (en) * | 2013-11-15 | 2014-02-12 | 柳州铁道职业技术学院 | Multichannel unidirectional voltage stabilization current regulator |
| CN103578669A (en) * | 2013-11-15 | 2014-02-12 | 柳州铁道职业技术学院 | Adjustable one-way resistor |
| CN112994541A (en) * | 2021-02-04 | 2021-06-18 | 胡晓莉 | SCR power expansion control system for direct current motor |
-
2012
- 2012-07-20 CN CN2012203552876U patent/CN202696530U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576733A (en) * | 2013-11-15 | 2014-02-12 | 柳州铁道职业技术学院 | Multichannel unidirectional voltage stabilization current regulator |
| CN103578669A (en) * | 2013-11-15 | 2014-02-12 | 柳州铁道职业技术学院 | Adjustable one-way resistor |
| CN103576733B (en) * | 2013-11-15 | 2015-05-27 | 柳州铁道职业技术学院 | Multichannel unidirectional voltage stabilization current regulator |
| CN112994541A (en) * | 2021-02-04 | 2021-06-18 | 胡晓莉 | SCR power expansion control system for direct current motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20130720 |