CN203632564U - Stable current control device for rectification power supply - Google Patents
Stable current control device for rectification power supply Download PDFInfo
- Publication number
- CN203632564U CN203632564U CN201320306450.4U CN201320306450U CN203632564U CN 203632564 U CN203632564 U CN 203632564U CN 201320306450 U CN201320306450 U CN 201320306450U CN 203632564 U CN203632564 U CN 203632564U
- Authority
- CN
- China
- Prior art keywords
- feedback signal
- loads
- chip microcomputer
- power source
- resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Rectifiers (AREA)
Abstract
The utility model discloses a stable current control device for a rectification power supply. The device comprises at least two direct current sensors, at least two isolation amplification circuits in one-to-one correspondent connection with the at least two direct current sensors, a given circuit and a single chip microcomputer respectively connected with the given circuit and the at least two isolation amplification circuits. According to the device, under the condition in which the output end of the rectification power supply is connected with a plurality of loads, control pulse signals are outputted via only one single chip microcomputer, the outputted control pulse signals are unique, and stable current can be ensured to be outputted by the rectification power supply according to the unique control pulse signals.
Description
Technical field
The utility model relates to steady flow field, relates in particular a kind of current stabilizing control device of rectifier power source.
Background technology
The current stabilizing control device of rectifier power source is usually used in the output of the electric current of controlling rectifier power source, guarantees that the electric current of rectifier power source is in stable state.
The current stabilizing control device of existing rectifier power source often adopts direct current to export as the electric current of the mode control rectifier power source of feedback for subsequent use as primary feedback, interchange.Show a kind of structural representation of current stabilizing control device of existing rectifier power source referring to Fig. 1.The current stabilizing control device of this rectifier power source comprises: given circuit 1, the current stabilizing controller 2 being connected with given circuit 1, the pulse transformer plate 3 being connected with current stabilizing controller 2, the main cabinet 4 of rectification being connected with pulse transformer plate 3 and the direct current transducer 5 and the ac sensor 6 that are connected with current stabilizing controller 2.
Wherein, current stabilizing controller 2 comprises: isolating amplifier circuit and and single-chip microcomputer, the main cabinet 4 of rectification is connected with the load of rectifier power source.
In the time that the electric current of rectifier power source is flowed through the load being connected with rectifier power source output, load produces DC feedback signal and exchanges feedback signal.Direct current transducer gathers respectively this DC feedback signal and exchanges feedback signal with ac sensor, and by isolating amplifier circuit by this DC feedback signal with exchange feedback signal and be sent in single-chip microcomputer.
Single-chip microcomputer relatively this DC feedback signal and given circuit is exported given signal, and compared result is carried out PID computing, export corresponding control wave to pulse transformer plate, and then the controllable silicon and the load that trigger in the main cabinet 4 of rectification form loop, to control the electric current of the load of flowing through, guarantee the electric current of rectifier power source stable output.
In the time that this DC feedback signal is abnormal, single-chip microcomputer relatively exchanges the given signal of feedback signal and given circuit output, and export corresponding control wave to Pulse Electric depressor plate according to comparative result, and then the main cabinet control of triggering rectification flows to the electric current of load, the electric current of assurance rectifier power source stable output.
In prior art, in the time that the output of rectifier power source is connected with multiple loads, conventionally adopt many cover current stabilizing control devices, because the parameter of many cover current stabilizing control devices cannot be consistent, thereby cause multiple control wave differences of output, it is indefinite that this just directly causes the electric current of rectifier power source output to rise and fall, thereby cannot guarantee the electric current of rectifier power source stable output.
Utility model content
In view of this, the utility model discloses a kind of current stabilizing control device of rectifier power source, connect multiple loads guaranteeing at the output of rectifier power source, single-chip microcomputer is exported unique control wave, to control the electric current of rectifier power source stable output.
For achieving the above object, the utility model provides following technical scheme:
A current stabilizing control device for rectifier power source, comprises single-chip microcomputer, given circuit, and described current stabilizing control device also comprises:
At least two loads that are connected with the output of described rectifier power source;
The DC feedback signal of at least two loads described in gathering respectively, and with described at least two loads at least two direct current transducers one to one;
With described at least two direct current transducers corresponding being connected one by one, described DC feedback signal is isolated and amplified at least two isolating amplifier circuits processing;
Described single-chip microcomputer is connected with described at least two isolating amplifier circuits with described given circuit respectively.
Preferably, described device also comprises:
The interchange feedback signal of at least two loads described in gathering respectively, and with described at least two loads at least two ac sensors one to one;
With described at least two ac sensors corresponding being connected one by one, described interchange feedback signal is isolated and amplified at least two isolating amplifier circuits processing.
Preferably, described isolating amplifier circuit comprises:
Resistance;
The operational amplifier being connected with described resistance;
Wherein, described resistance is connected with the inverting input of described operational amplifier, the in-phase input end ground connection of described operational amplifier, and the output of described operational amplifier is connected with described single-chip microcomputer.
Preferably, described resistance is that resistance is the resistance of 5.1K Ω.
Preferably, described device also comprises:
Be connected with described single-chip microcomputer, the pulse transformer plate of the pulse voltage of the control wave of the described single-chip microcomputer output that raises.
Preferably, described device also comprises:
Be connected with described pulse transformer plate, the main cabinet of rectification that the electric current at least two loads described in flowing through is carried out to rectification according to described pulse transformer plate control wave after treatment.
Through as shown from the above technical solution, compared with prior art, the utility model discloses a kind of current stabilizing control device of rectifier power source.This device comprises: at least two direct current transducers, with described at least two direct current transducers corresponding at least two isolating amplifier circuits, the given circuit being connected and single-chip microcomputer being connected with at least two isolating amplifier circuits with given circuit respectively one by one.These at least two direct current transducers gather the DC feedback signal producing when electric currents are flowed through at least two loads, and the DC feedback signal that these at least two loads are produced by with direct current transducer one by one corresponding at least two connected isolating amplifier circuits be sent in single-chip microcomputer.Single-chip microcomputer relatively should be produced by least two loads the given signal of DC feedback signal and given circuit output, and according to a control wave of comparative result output, and then according to the output current of this control wave control rectifier power source.Because this device connects multiple loads at the output of rectifier power source, only by a single-chip microcomputer output control pulse signal, therefore the control wave of output is unique, thereby can guarantee that rectifier power source is according to the electric current of this unique control wave stable output.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 shows a kind of structural representation of current stabilizing control device of existing rectifier power source;
Fig. 2 shows the structural representation of an embodiment of the current stabilizing control device of a kind of rectifier power source of the utility model;
Fig. 3 shows the structural representation of another embodiment of the current stabilizing control device of a kind of rectifier power source of the utility model;
Fig. 4 shows the structural representation of an embodiment of isolating amplifier circuit in the current stabilizing control device of a kind of rectifier power source of the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Show the structural representation of an embodiment of the current stabilizing control device of a kind of rectifier power source of the utility model referring to Fig. 2.Wherein, the output of this rectifier power source is connected with at least two loads.
In the present embodiment, this device comprises:
Gather respectively the DC feedback signal of at least two loads, and a pair of with described at least two loads one
At least two direct current transducers 21 of answering.
With these at least two direct current transducers 21 corresponding being connected one by one, DC feedback signal is isolated and amplified at least two isolating amplifier circuits 22 of processing.
Input the given circuit 24 of given signal.
Be connected with given circuit 24 and at least two isolating amplifier circuits 22 respectively, DC feedback signal and given signal are compared, and according to the single-chip microcomputer 23 of comparative result output control pulse signal.
Wherein, this single-chip microcomputer 23 and at least two isolating amplifier circuits 22 can be built in same current stabilizing controller.The quantity of direct current transducer and load equates and is relation one to one.
Its operation principle is as follows:
In the time that the electric current of rectifier power source is flowed through load, load meeting produces corresponding DC feedback signal, and this DC feedback signal is to exist with the form in magnetic field.In the time that electric current is flowed through multiple load, can produce multi-channel DC feedback signal.This at least two direct current transducers 21 gather respectively the DC feedback signal of at least two loads one to one, and the multi-channel DC feedback signal collecting is sent to respectively in different isolating amplifier circuits to 22.
Isolating amplifier circuit 22 is isolated and is amplified processing the DC feedback signal receiving, and DC feedback signal after treatment is sent to single-chip microcomputer 23.Meanwhile, single-chip microcomputer 23 receives the given signal that given circuit 24 sends.Wherein, this given signal can need to arrange according to actual conditions voluntarily.
Single-chip microcomputer 23 calculates each DC feedback signal and given signal according to default formula, and result of calculation is carried out to PID computing, and then according to corresponding, the unique control wave of PID operation result output, to control the output current of rectifier power source.
Wherein, this default formula can arrange voluntarily, and optionally this default formula is: | A+B|+|A-B|-C × D, (size that wherein A, B are each DC feedback signal, the number that C is DC feedback signal, the size that D is given signal).
In the present embodiment, this device connects multiple loads at the output of rectifier power source, only by a single-chip microcomputer output control pulse signal, therefore the control wave of output is unique, thereby can guarantee that rectifier power source is according to the electric current of this unique control wave stable output.
Further, in order to guarantee in the situation that DC feedback signal is abnormal, this device still can be realized the control to rectification circuit output current.This device also comprises:
Gather respectively the interchange feedback signal of at least two loads, and with described at least two loads at least two ac sensors one to one.
With at least two ac sensors corresponding being connected one by one, this interchange feedback signal is isolated and amplified at least two isolating amplifier circuits processing.
In the time that electric current is flowed through load, when loading on generation DC feedback signal, also can produce interchange feedback signal.This interchange feedback signal can be used as feedback signal for subsequent use, with in the time that DC feedback signal is abnormal, replaces DC feedback signal.
Conventionally, single-chip microcomputer by this DC feedback signal relatively with exchange feedback signal, judge whether this DC feedback signal occurs extremely.Optionally, single-chip microcomputer judges by the size of the interchange feedback signal of this DC feedback signal relatively whether this DC feedback signal occurs extremely, is greater than this DC feedback signal when exchanging feedback signal, determines that this DC feedback signal is abnormal.In the time that this interchange feedback signal is less than or equal to this DC feedback signal, determine that this DC feedback signal is normal.Wherein, this decision process is same as the prior art.
Further, in above-mentioned arbitrary embodiment, this device also comprises: be connected with described single-chip microcomputer, and the pulse transformer plate of the pulse voltage of the control wave of the described single-chip microcomputer output that raises.
Further, this device also comprises: be connected with described pulse transformer plate, and the main cabinet of rectification that the electric current at least two loads described in flowing through is carried out to rectification according to described pulse transformer plate control wave after treatment.
Wherein, load is connected with the main cabinet of rectification, and multiple load is relation in parallel.Arrive the main cabinet of rectification through pulse transformer plate control wave after treatment, between the controllable silicon in the main cabinet of triggering rectification and load, conducting forms loop, to control the electric current of flowing through in load.
In order specifically to introduce the annexation of all parts in this device, be connected with two loads take the output of rectifier power source below and describe as example.The utility model discloses the structural representation of a kind of another embodiment of current stabilizing control device of rectifier power source referring to Fig. 3.
In order to distinguish two loads of rectifier power source output, these two loads are respectively the first load 30 and the second load 31 in the present embodiment.Accordingly, the transducer of DC feedback signal that gathers the first load 30 is the first direct current transducer 32, what gather that the first load exchanges feedback signal is the first ac sensor 33.The second load 31 correspondences be the second direct current transducer 34 and the second ac sensor 35.
Accordingly, be respectively the first isolating amplifier circuit 36, the second isolating amplifier circuit 37, the 3rd isolating amplifier circuit 38 and the 4th isolating amplifier circuit 39 with the first direct current transducer 32, the first ac sensor 33, the second direct current transducer 34 and the corresponding isolating amplifier circuit of the second ac sensor 35.
The structural representation of an embodiment of isolated amplifier in the current stabilizing control device of a kind of rectifier power source of the utility model further, is disclosed referring to Fig. 4.In above-mentioned arbitrary embodiment, the isolated amplifier of this device comprises:
The operational amplifier 42 being connected with resistance;
Wherein, resistance 41 is connected with the inverting input of described operational amplifier 42, the in-phase input end ground connection of operational amplifier 42, and the output of operational amplifier 43 is connected with described single-chip microcomputer.
Further, the resistance value of this resistance can be set voluntarily according to actual conditions, optionally has 5.1K Ω.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple modification of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a current stabilizing control device for rectifier power source, comprises single-chip microcomputer, given circuit, it is characterized in that, described current stabilizing control device also comprises:
At least two loads that are connected with the output of described rectifier power source;
The DC feedback signal of at least two loads described in gathering respectively, and with described at least two loads at least two direct current transducers one to one;
With described at least two direct current transducers corresponding being connected one by one, described DC feedback signal is isolated and amplified at least two isolating amplifier circuits processing;
Described single-chip microcomputer is connected with described at least two isolating amplifier circuits with described given circuit respectively.
2. device according to claim 1, is characterized in that, described device also comprises:
The interchange feedback signal of at least two loads described in gathering respectively, and with described at least two loads at least two ac sensors one to one;
With described at least two ac sensors corresponding being connected one by one, described interchange feedback signal is isolated and amplified at least two isolating amplifier circuits processing.
3. device according to claim 1, is characterized in that, described isolating amplifier circuit comprises:
Resistance;
The operational amplifier being connected with described resistance;
Wherein, described resistance is connected with the inverting input of described operational amplifier, the in-phase input end ground connection of described operational amplifier, and the output of described operational amplifier is connected with described single-chip microcomputer.
4. device according to claim 3, its spy is, described resistance is that resistance is the resistance of 5.1K Ω.
5. device according to claim 1, is characterized in that, described device also comprises:
Be connected with described single-chip microcomputer, the pulse transformer plate of the pulse voltage of the control wave of the described single-chip microcomputer output that raises.
6. device according to claim 5, it is characterized in that, described device also comprises: is connected with described pulse transformer plate, and the main cabinet of rectification that the electric current at least two loads described in flowing through is carried out to rectification according to described pulse transformer plate control wave after treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320306450.4U CN203632564U (en) | 2013-05-30 | 2013-05-30 | Stable current control device for rectification power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320306450.4U CN203632564U (en) | 2013-05-30 | 2013-05-30 | Stable current control device for rectification power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203632564U true CN203632564U (en) | 2014-06-04 |
Family
ID=50819000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320306450.4U Expired - Fee Related CN203632564U (en) | 2013-05-30 | 2013-05-30 | Stable current control device for rectification power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203632564U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110370792A (en) * | 2019-08-30 | 2019-10-25 | 中国航发动力股份有限公司 | A kind of method antifalsification label electrolysis stamping device and thermoprint antifalsification label is electrolysed using it |
-
2013
- 2013-05-30 CN CN201320306450.4U patent/CN203632564U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110370792A (en) * | 2019-08-30 | 2019-10-25 | 中国航发动力股份有限公司 | A kind of method antifalsification label electrolysis stamping device and thermoprint antifalsification label is electrolysed using it |
| CN110370792B (en) * | 2019-08-30 | 2021-06-04 | 中国航发动力股份有限公司 | Anti-counterfeit label electrolytic hot stamping device and method for electrolytically hot stamping anti-counterfeit label by using same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102628889B (en) | Voltage sampling circuit | |
| CN104883798B (en) | LED linear constant-current drive circuit | |
| CN204362337U (en) | Electromagnetic Heating control circuit and electromagnetic heating apparatus | |
| CN204391679U (en) | A kind of leakage current detection protection circuit | |
| CN204012952U (en) | A kind of novel self-powered wireless temperature measurement transducer is got can circuit | |
| CN203894394U (en) | Power supply circuit and electronic apparatus provided with current monitoring function | |
| CN203632564U (en) | Stable current control device for rectification power supply | |
| CN202059334U (en) | Constant power output magnetron sputtering coating power supply | |
| CN102570853A (en) | Constant-power-output magnetron sputtering coating power supply | |
| CN204389617U (en) | A kind of load aging monitoring device | |
| CN203871840U (en) | Programmable, safe, energy-saving leakage protector | |
| CN206432693U (en) | Power system monitor | |
| CN103729008B (en) | Wide-current-range alternating-current and constant-current source compensation type control method | |
| CN207603216U (en) | A kind of more proportional integration resonant controllers | |
| CN202886443U (en) | Voltage sampling circuit | |
| CN104237612A (en) | Overcurrent detection circuit | |
| CN204014133U (en) | A kind of electromagnetic heating circuit | |
| CN203660518U (en) | Overcurrent protection circuit of insulated gate bipolar transistor | |
| CN209198534U (en) | A kind of zero cross detection circuit and device | |
| CN201917822U (en) | Temperature carrier monitoring device | |
| CN206038182U (en) | Be applied to circuit that IGBT temperature detected | |
| CN105992416A (en) | Electromagnetic heating control circuit and electromagnetic heating device | |
| CN206002585U (en) | Perception for electric fire disaster monitoring and resistive load share signal processor | |
| CN204681076U (en) | A kind of protective circuit for exchanging two-wire system tuning fork material-position measuring meter | |
| CN202875963U (en) | Infusion information collecting circuit and infusion information collecting chip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20150530 |
|
| EXPY | Termination of patent right or utility model |