CN102622023B - Current feedback sensor single supply system - Google Patents
Current feedback sensor single supply system Download PDFInfo
- Publication number
- CN102622023B CN102622023B CN201110027827.8A CN201110027827A CN102622023B CN 102622023 B CN102622023 B CN 102622023B CN 201110027827 A CN201110027827 A CN 201110027827A CN 102622023 B CN102622023 B CN 102622023B
- Authority
- CN
- China
- Prior art keywords
- resistance
- module
- electric current
- voltage
- modulate circuit
- 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
Landscapes
- Amplifiers (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
The invention discloses a kind of current feedback sensor single supply system, including accumulator, voltage reduction module, circuit is extracted at power supply midpoint, flash controls module, low limit controls module, electric current output modulate circuit, electric current absorb modulate circuit.Accumulator is connected to the input of voltage reduction module, the outfan of voltage reduction module exports modulate circuit to electric current and powers, the midpoint of circuit extraction voltage reduction module output voltage is extracted at power supply midpoint, then this voltage is exported respectively and control module and low limit control module to flash, flash output module is connected to output voltage and electric current output modulate circuit, and low limit controls module and is connected to output voltage and electric current absorption modulate circuit.This patent need not adopt insulating power supply module, but directly utilize former power supply and extract the mode of power supply mid-point voltage and realize, so in hgher efficiency, for more meaningful energy-conservation；This patent takes up room little, can realize simply by the resistance capacitance of some patch types and amplifier and transistor；This patent is under realizing the capacity situation with power level, and heat dissipation capacity is less；This patent has the advantage of highly significant on cost.
Description
Technical field
The present invention relates to a kind of power supply solution, particularly relate to a kind of single power source mode for current feedback sensor and system thereof and realize method.
Background technology
At present, along with society is increasingly surging to the demand of new forms of energy, the requirement of simultaneously environmental protection and energy saving is also increasingly stricter, the VFC demand of motor day by day surging.
In VFC, in order to reach reasonable control effect, to electric current, the testing requirement of the physical quantitys such as voltage also gradually steps up.Detection method to electric current and voltage, it is utilize Hall closed-loop sensors, in order to there be high certainty of measurement, high capacity of resisting disturbance, the output of this sensor is current signal, it is necessary to outside interpolation one measurement resistance, and the one end measuring resistance is connected to the outfan of sensor, the other end is held with being connected to the reference of sensor, and sensor itself needs negative and positive dual power to power.
Traditional way is by insulating power supply module, to provide the dual power supply of one ± 12V-± 18V to sensor, then using the ground of this dual power supply as witness mark ground.This traditional way one is that cost is higher, two is that such transformation efficiency is relatively low, and three is that the spatial volume taken is relatively larger, if requiring, at real-world environment, the occasion that controller volume is little, especially, on electric automobile, bring very big pressure can to the space that other structure takies.
Summary of the invention
In order to overcome the deficiency of technique scheme, this patent provides a kind of current feedback sensor single supply system and realizes method.
This patent realizes by following technical solution:
A kind of current feedback sensor single supply system and realize method, including accumulator, voltage reduction module, circuit is extracted at power supply midpoint, flash controls module, low limit controls module, electric current output modulate circuit, electric current absorb modulate circuit.
Described accumulator is powered to voltage reduction module, battery tension is reduced by voltage reduction module, export and power to electric current output modulate circuit and electric current absorption modulate circuit, power supply midpoint is extracted circuit and is obtained the mid-point voltage of voltage reduction module output voltage, and flash control module and low limit control module control electric current output modulate circuit respectively according to mid-point voltage and output voltage and electric current absorbs the output of modulate circuit and absorbs the size of electric current.
Its integrated connection mode is: the resistance R3 that 1 end of amplifier U1A in circuit is connected respectively in described flash control module is extracted at described power supply midpoint, described low limit controls the resistance R4 in module, described flash controls the resistance R7 in module and is connected to the audion Q3 base stage of described electric current output modulate circuit, described low limit controls the audion Q1 base stage being connected in described electric current absorption modulate circuit of the resistance R15 in module, and electric current output modulate circuit and electric current absorb modulate circuit by being connected on output voltage respectively through resistance R10 and resistance R16.
The connected mode of circuit is extracted at described power supply midpoint: one end of resistance R1 is connected to the positive pole of described voltage reduction module output voltage V1, the other end is connected to one end of resistance R2 and 3 ends of amplifier U1A, the other end of resistance R2 is connected to the ground of described voltage reduction module, 8 ends of amplifier U1A are connected with positive source, 4 ends of U1A are connected with the negative pole of power supply, and 2 ends of U1A are connected with 1 end of U1A.
Described flash controls the connected mode of module: resistance R3 one end is connected to mid-point voltage, the other end is connected to 5 ends of voltage comparator U3B and one end of resistance R14, the other end of resistance R14 is connected to power cathode, one end of resistance R6 is connected on output voltage, the other end of resistance R6 is connected on 6 ends of comparator U3B and one end of resistance R13, the other end of resistance R13 is connected on 7 ends and the resistance R7 of comparator U3B, and 8 ends of comparator U3B and 4 ends are connected respectively to the both positive and negative polarity of power supply.
Described low limit controls the connected mode of module: resistance R4 is connected to 2 ends of comparator U2A and one end of resistance R11, the other end of resistance R11 is connected to 1 end and the resistance R15 of comparator U2A, one end of resistance R5 is connected on output voltage, the other end of resistance R5 is connected on 3 ends of comparator U2A and one end of resistance R12, the other end of resistance R12 connects power cathode, and 8 ends of comparator U2A and 4 ends are connected respectively to the both positive and negative polarity of power supply.
The connected mode of described electric current output modulate circuit is: the emitter stage of audion Q3 is connected in power cathode, colelctor electrode is connected in one end of resistance R18, the other end of resistance R18 is connected to the base stage of audion Q2 and one end of resistance R8, the other end of resistance R8 is connected in positive source, the transmitter of audion Q2 is connected in positive source, colelctor electrode is connected in one end of resistance R10, and the other end of resistance R10 is connected on output voltage.
Described electric current absorbs the connected mode of modulate circuit: audion Q1 transmitter is connected in power cathode, and colelctor electrode is connected in one end of resistance R16, and the other end of resistance R16 is linked on output voltage, and electric capacity C1 is connected between output voltage and power cathode.
This patent need not adopt insulating power supply module, but directly utilize former power supply and extract the mode of power supply mid-point voltage and realize, so in hgher efficiency, for more meaningful energy-conservation；This patent takes up room little, can realize simply by the resistance capacitance of some patch types and comparator and transistor；This patent is under realizing the capacity situation with power level, and heat dissipation capacity is less；This patent has the advantage of highly significant on cost.
Accompanying drawing explanation
Below according to drawings and Examples, this patent is described further:
Fig. 1 is this patent overall structure schematic diagram
In figure: 11, accumulator；12, voltage reduction module；13, single supply output；14, flash controls module；15, circuit is extracted at power supply midpoint；16, low limit controls module；17, electric current output modulate circuit；18, electric current absorbs modulate circuit；19, stable low-tension supply.
Fig. 2 is this patent integrated circuit structure and connected mode schematic diagram thereof
Detailed description of the invention
nullAs Figure 1-Figure 2，A kind of current feedback sensor single supply system and realize method，Including accumulator 11、Voltage reduction module 12、Circuit 15 is extracted at power supply midpoint、Flash controls module 14、Low limit controls module 16、Electric current output modulate circuit 17、Electric current absorbs modulate circuit 18，Described accumulator 11 supplies electricity to described voltage reduction module 12，Described voltage reduction module 12 exports a stable low-tension supply 19 and provides power supply to subsequent conditioning circuit，Described power supply midpoint is extracted circuit 15 and is extracted the mid-point voltage of this output single supply，Control module 14 to flash and low limit controls module 16 as the reference voltage，And flash controls module 14 and low limit controls the module 16 relation according to output voltage and reference voltage，Control electric current output modulate circuit 17 respectively and ensure that output voltage is consistent with reference voltage with the output of electric current absorption modulate circuit 18 with absorbing size of current.Its connected mode is: the resistance R3 that 1 end of amplifier U1A in circuit is connected respectively in described flash control module 14 is extracted at described power supply midpoint, described low limit controls the resistance R4 in module 16, described flash controls the resistance R7 in module 14 and is connected to the audion Q3 base stage of described electric current output modulate circuit 17, described low limit controls the audion Q1 base stage being connected in described electric current absorption modulate circuit 18 of the resistance R15 in module 16, and electric current output modulate circuit 17 and electric current absorb modulate circuit 18 and be connected on output voltage respectively through resistance R10 and resistance R16.
Circuit is extracted at power supply midpoint:
By resistance R1 and resistance R2, it is provided that a mid-point voltage reference, voltage amplifier U1A constitutes a voltage follower by negative terminal feedback, is used for constructing a driving force strong, the mid-point voltage reference point of output voltage stabilization.
Flash controls modular circuit:
Resistance R3 and resistance R14 alignment voltage carry out dividing potential drop, resistance R6 and resistance R13 and output voltage are carried out dividing potential drop, coordinate U3B simultaneously, and resistance R13 constitutes again negative feedback, according to the principle of current balance type, construct a subtractor.
Uo=(Vref-Vout) * R13/R6；
Wherein Uo comparator U3B output voltage；
Vref is mid-point voltage；
Vout is output voltage；
Low limit controls modular circuit:
Resistance R5 and resistance R12 constitutes the dividing potential drop of alignment voltage, and resistance R4 and resistance R11 constitutes output voltage dividing potential drop, and resistance R11 and comparator U2A constitutes negative feedback simultaneously, according to the principle of current balance type, constructs a subtractor,
Uol=(Vout-Vref) * R11/R4
Wherein Uo1 is comparator U2A output voltage；
Vref is mid-point voltage；
Vout is output voltage；
Electric current output modulate circuit:
The signal that flash control circuit is drawn by resistance R7 and audion Q3 is amplified, thus controlling to flow through the electric current of resistance R8, and then reaches the purpose controlling to flow through audion Q2 electric current, once controls output voltage equal to mid-point voltage.
Electric current absorbs modulate circuit:
The signal that low limit control circuit is drawn by resistance R15 and audion Q1 is amplified, and directly controls the electric current flowing through resistance R16 and audion Q1, regulates output voltage equal to mid-point voltage with this.
The operation principle of the present invention:
When output voltage is lower than mid-point voltage time, now low limit controls the output voltage Uol of the comparator U2A in module 16 circuit should be negative value according to Theoretical Calculation, but comparator is single supply now powers, so the minimum voltage of comparator output is zero volt, say, that now audion Q1 state is cut-off；Flash controls output voltage Uo=(Vref-Vout) the * R13/R6 of the comparator U3B in module 14 circuit simultaneously；
If the difference of Vref-Vout is more big, that is the words that output voltage is more low, the voltage of comparator U3B output is more high, thus audion Q3 allowing the electric current passed through more big, so allowing the electric current passed through also more big in resistance R18, audion Q2 can supplement more electric current by power supply and resistance R10 to electric capacity C1 in this case, when Vout is gradually increased time, so the difference of Vref-Vout just diminishes, thus Q2 allows the electric current supplemented also just to diminish.
When Vout is more than Vref time, in like manner comparator U3B now output voltage is zero volt, now audion Q3 is in cut-off state, so Q2 is also switched off, now the output voltage Uol of the comparator U2A in the current sink circuit of low limit be on the occasion of, Vout exceeds the more many of Vref, so the value of Uol is more big, thus audion Q1 allows the electric current passed through more big, thus electricity loop unnecessary on electric capacity C1 can be bled off, alternation by flash and low limit, can ensure that output voltage is centered around in one only small scope of mid-point voltage to change, this scope has the ratio of resistance R13 and resistance R6 to determine.
So far this method provide one stable, not only can export electric current but also the mid point level of electric current can be absorbed, so sensor for needing dual power supply to drive, had three stable level to use, sensor just can normal operation.
Person skilled in the art should be familiar with, embodiment described above is intended merely to the explanation purpose of the present invention, and it is not used as limitation of the invention, as long as in the essential scope of the present invention, change, modification that above-described embodiment is done all will drop in scope of the presently claimed invention.
Claims (6)
- null1. a current feedback sensor single supply system，Including accumulator、Voltage reduction module、Circuit is extracted at power supply midpoint、Flash controls module、Low limit controls module、Electric current output modulate circuit、Electric current absorbs modulate circuit，It is characterized in that，Described accumulator is powered to voltage reduction module，Battery tension is reduced by voltage reduction module，Export and power to electric current output modulate circuit and electric current absorption modulate circuit，Power supply midpoint is extracted circuit and is obtained the mid-point voltage of voltage reduction module output voltage，Flash controls module and low limit controls module and controls the output of electric current output modulate circuit and electric current absorption modulate circuit respectively according to mid-point voltage and output voltage and absorb the size of electric current，Its connected mode is: the 3rd resistance (R3) that 1 end of amplifier (U1A) in circuit is connected respectively in described flash control module is extracted at described power supply midpoint、Described low limit controls the 4th resistance (R4) in module，Described flash controls the 7th resistance (R7) in module and is connected to the 3rd audion (Q3) base stage of described electric current output modulate circuit，Described low limit controls the first audion (Q1) base stage that the 15th resistance (R15) in module is connected in described electric current absorption modulate circuit，And electric current output modulate circuit and electric current absorb modulate circuit and are connected on output voltage respectively through the tenth resistance (R10) and the 16th resistance (R16).
- 2. a kind of current feedback sensor single supply system according to claim 1, it is characterized in that: described power supply midpoint is extracted the connected mode of circuit and is: one end of the first resistance (R1) is connected to the positive pole of described voltage reduction module output voltage (V1), and be connected with positive source, the other end of the first resistance (R1) is connected to one end of the second resistance (R2) and 3 ends of amplifier (U1A), the other end of the second resistance (R2) is connected to the ground of described voltage reduction module, and be connected with power cathode, 8 ends of amplifier (U1A) are connected with positive source, 4 ends of amplifier (U1A) are connected with power cathode, 2 ends of amplifier (U1A) are connected with 1 end of amplifier (U1A).
- 3. a kind of current feedback sensor single supply system according to claim 1, it is characterized in that: described flash controls the connected mode of module: the 3rd resistance (R3) one end is connected to mid-point voltage, the other end is connected to 5 ends of the first comparator (U3B) and one end of the 14th resistance (R14), the other end of the 14th resistance (R14) is connected to power cathode, one end of 6th resistance (R6) is connected on output voltage, the other end of the 6th resistance (R6) is connected on 6 ends of the first comparator (U3B) and one end of the 13rd resistance (R13), the other end of the 13rd resistance (R13) is connected on 7 ends and the 7th resistance (R7) of the first comparator (U3B), 8 ends of the first comparator (U3B) and 4 ends are connected respectively to the both positive and negative polarity of power supply.
- 4. a kind of current feedback sensor single supply system according to claim 1, it is characterized in that: described low limit controls the connected mode of module: the 4th resistance (R4) is connected to 2 ends of the second comparator (U2A) and one end of the 11st resistance (R11), the other end of the 11st resistance (R11) is connected to 1 end and the 15th resistance (R15) of the second comparator (U2A), one end of 5th resistance (R5) is connected on output voltage, the other end of the 5th resistance (R5) is connected on 3 ends of the second comparator (U2A) and one end of the 12nd resistance (R12), the other end of the 12nd resistance (R12) is connected to power cathode, 8 ends of the second comparator (U2A) and 4 ends are connected respectively to the both positive and negative polarity of power supply.
- 5. a kind of current feedback sensor single supply system according to claim 1, it is characterized in that: the connected mode of described electric current output modulate circuit: the emitter stage of the 3rd audion (Q3) is connected in power cathode, colelctor electrode is connected in one end of the 18th resistance (R18), the other end of the 18th resistance (R18) is connected to the base stage of the second audion (Q2) and one end of the 8th resistance (R8), the other end of the 8th resistance (R8) is connected in positive source, the emitter stage of the second audion (Q2) is connected in positive source, colelctor electrode is connected in one end of the tenth resistance (R10), the other end of the tenth resistance (R10) is connected on output voltage.
- 6. a kind of current feedback sensor single supply system according to claim 1, it is characterized in that: described electric current absorbs the connected mode of modulate circuit: the first audion (Q1) emitter stage is connected in power cathode, colelctor electrode is connected in one end of the 16th resistance (R16), the other end of the 16th resistance (R16) is linked on output voltage, and electric capacity (C1) is connected between output voltage and power cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110027827.8A CN102622023B (en) | 2011-01-26 | 2011-01-26 | Current feedback sensor single supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110027827.8A CN102622023B (en) | 2011-01-26 | 2011-01-26 | Current feedback sensor single supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102622023A CN102622023A (en) | 2012-08-01 |
| CN102622023B true CN102622023B (en) | 2016-07-06 |
Family
ID=46561985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110027827.8A Expired - Fee Related CN102622023B (en) | 2011-01-26 | 2011-01-26 | Current feedback sensor single supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102622023B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8923025B2 (en) * | 2013-01-30 | 2014-12-30 | Siemens Industry, Inc. | Apparatus and methods for feedback sensing in multi-cell power supplies |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09205330A (en) * | 1996-01-26 | 1997-08-05 | Matsushita Electric Works Ltd | Output amplifier circuit for sensor |
| CN2689241Y (en) * | 2004-04-26 | 2005-03-30 | 邹高芝 | Single-power supply circuit of current and voltage sensor |
| CN101563830A (en) * | 2006-12-19 | 2009-10-21 | 通用电气公司 | Current sensor apparatus and method for uninterruptible power supply |
| CN101710741A (en) * | 2009-11-11 | 2010-05-19 | 中兴通讯股份有限公司 | Method and device for smoothing pulse current |
-
2011
- 2011-01-26 CN CN201110027827.8A patent/CN102622023B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09205330A (en) * | 1996-01-26 | 1997-08-05 | Matsushita Electric Works Ltd | Output amplifier circuit for sensor |
| CN2689241Y (en) * | 2004-04-26 | 2005-03-30 | 邹高芝 | Single-power supply circuit of current and voltage sensor |
| CN101563830A (en) * | 2006-12-19 | 2009-10-21 | 通用电气公司 | Current sensor apparatus and method for uninterruptible power supply |
| CN101710741A (en) * | 2009-11-11 | 2010-05-19 | 中兴通讯股份有限公司 | Method and device for smoothing pulse current |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102622023A (en) | 2012-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202917976U (en) | Protective device of solar energy LED power supply input polarity reversal connection | |
| CN104073838A (en) | Portable water electrolysis hydrogen production circuit control system based on TL494 | |
| CN103532532A (en) | Power-up/down time sequence control circuit | |
| CN203858468U (en) | Air conditioner standby power consumption control circuit and air conditioner | |
| CN204044961U (en) | A kind of sun power forest fire protection alarm | |
| CN102622023B (en) | Current feedback sensor single supply system | |
| CN204575223U (en) | A kind of self-power generation type heat energy metering system | |
| CN201706379U (en) | Solar photoelectric integrated light power supply | |
| CN203941510U (en) | Pressure sensitivity power generation type wireless mouse | |
| CN202149911U (en) | Power supply circuit of external battery for intelligent three-phase charge control electric meter | |
| CN202996717U (en) | Relay drive circuit in resistance-capacitance voltage drop-down circuit | |
| CN205670689U (en) | A kind of charging circuit of remote controller | |
| CN102931704B (en) | Solar energy and piezoelectricity power generation complementary charger | |
| CN203039615U (en) | Photovoltaic power generation energy management system based on super capacitor | |
| CN203618180U (en) | LED driving apparatus | |
| CN206341143U (en) | Two-way DC D/C powers based on MSP430F149 | |
| CN206211606U (en) | A kind of quick charger | |
| CN201392483Y (en) | Voltage reducing type voltage stabilizing circuit | |
| CN203455635U (en) | Power-on and power-off time sequence control circuit | |
| CN204439363U (en) | Diesel engine performance test unit | |
| CN204270028U (en) | Sun power integrated driving square clock | |
| CN102751969B (en) | Output short-circuit protection circuit and method of low-power photovoltaic controller | |
| CN203641060U (en) | Street lamp fan controller | |
| CN201656861U (en) | Starting circuit of solar brushless pump | |
| CN203554629U (en) | Remote controller for photovoltaic television |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100089 Beijing Fengtai District Branch Road No. 7 Room 403 Patentee after: Beijing Youxin Hongke electronic Polytron Technologies Inc Address before: 100089 Beijing Fengtai District Branch Road No. 7 Room 403 Patentee before: Beijing Unison Electronics Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20200126 |