CN206180870U - A power supply circuit for collector - Google Patents
A power supply circuit for collector Download PDFInfo
- Publication number
- CN206180870U CN206180870U CN201621248097.9U CN201621248097U CN206180870U CN 206180870 U CN206180870 U CN 206180870U CN 201621248097 U CN201621248097 U CN 201621248097U CN 206180870 U CN206180870 U CN 206180870U
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- Prior art keywords
- circuit
- power
- power supply
- power circuit
- model
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The utility model discloses a power supply circuit for collector, include with mains connection's reduction voltage circuit, still include: a power supply circuit is connected with the reduction voltage circuit electricity for for PLC power line carrier communication circuit and the power supply of RF micro -power wireless communication circuit, the 2nd power supply circuit is connected with power supply circuit electricity for for the infrared communication circuit power supply, the 3rd power supply circuit is connected with the reduction voltage circuit electricity for for the RS485 communication circuit power supply, fourth power supply circuit is connected with power supply circuit electricity for for the controller power supply. It supplies power for different communication circuit to have set up level four export power supply for the collector can normally be worked, the 3rd power supply circuit and other power isolation set up, and can prevent does not have the current potential to constitute unpredictable's return circuit and burn out the communication port between signal reference ground when remote communication, having set up stand -by power supply and having makeed when the outage, data still can be preserved to the controller.
Description
Technical field
This utility model is related to a kind of power circuit, more specifically, it relates to a kind of power circuit for harvester.
Background technology
Communication terminal of the harvester in long-distance meter-reading system as gauge table and concentrator, is indispensable important
Equipment.Conventional harvester includes controller, the infrared communication circuit that is connected with controller, RS485 telecommunication circuits, RF micropowers
Radio communication circuit, PLC power carrier communication circuits and the power circuit powered for above-mentioned each telecommunication circuit.When initial
Voltage is provided by civil power, but the voltage actually used need not be so big, and how defeated the output voltage needs for providing are
Go out and can just be supplied to each above-mentioned telecommunication circuit, and existing power circuit can not provide the regulated power supply of multi output.
Utility model content
In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of power supply electricity for harvester
Road, can export multivoltage to be supplied to different communication circuit, enable each telecommunication circuit normal work.
For achieving the above object, this utility model provides following technical scheme：
A kind of power circuit for harvester, including the reduction voltage circuit electrically connected with city, is also included：
First power circuit, is electrically connected with the reduction voltage circuit, for for PLC power carrier communication circuits and RF micropowers
Radio communication circuit is powered；
Second source circuit, is electrically connected with first power circuit, for powering for infrared communication circuit；
3rd power circuit, is electrically connected with the reduction voltage circuit, for powering for RS485 telecommunication circuits；
4th power circuit, is electrically connected with first power circuit, for powering for controller.
By adopting above-mentioned technical proposal, each telecommunication circuit is provided by different power circuits so that harvester can
Normal work, meanwhile, the 3rd power circuit isolation processing is protecting whole circuit.
Further, first power circuit includes the rectification circuit electrically connected with the reduction voltage circuit and described whole
The filter circuit of current circuit electrical connection.
By adopting above-mentioned technical proposal, the rectified circuit of alternating current of reduction voltage circuit output, filter circuit, mu balanced circuit
After obtain galvanic current pressure.
Further, first rectifier bridge stack of the rectification circuit using model MB10S, first rectifier bridge stack
Exchange electrical input is connected to reduction voltage circuit, and negative output terminal ground connection, positive output end are connected to the filter circuit.
Further, the filter circuit includes the electrochemical capacitor being arranged in parallel and the first electric capacity, the electrochemical capacitor
Positive pole is connected to the positive output end of the first rectifier bridge stack, minus earth.
Primarily serve energy storage effect and cut down the peak current that load occurs by adopting above-mentioned technical proposal, electrochemical capacitor,
Stable direct current output is provided to electric current below, while the low frequency impurity ripple in the middle of filtering circuit；First electric capacity is mainly
Radio-frequency component ripple in the middle of filtering circuit.
Further, the second source circuit includes the first voltage stabilizing chip of model L7805ABV, and described first is steady
The input of pressure chip is connected by diode with outfan, and the anode of the diode is connected to the output of the first voltage stabilizing chip
End, negative electrode are connected to the input of the first voltage stabilizing chip.
Further, the 3rd power circuit includes the second of model MB10S electrically connected with the reduction voltage circuit
Second voltage stabilizing chip of model L7805ABV of the positive output end connection of rectifier bridge stack and second rectifier bridge stack, it is described
The positive output end of the second rectifier bridge stack is connected with the input of the second voltage stabilizing chip.
Further, the 4th power circuit includes the 3rd voltage stabilizing chip of model LM1117-ADJ, wherein, it is described
The input of the 3rd voltage stabilizing chip is connected to the outfan of the first voltage stabilizing chip.
Further, the power circuit also includes the stand-by power supply being connected with controller for power-off protection.
By adopting above-mentioned technical proposal, it is can still to preserve data that the setting of stand-by power supply causes harvester power-off.
Further, the stand-by power supply adopts lithium battery.
Further, the reduction voltage circuit includes the transformator of model LOFA12082.
Compared with prior art, the utility model has the advantages that：
1st, it is that different telecommunication circuits is powered to be provided with level Four out-put supply so that harvester being capable of normal work；
2nd, the 3rd power circuit and other isolated from power are arranged, and can prevent having electricity between signal reference ground in telecommunication
Gesture constitutes unpredictable loop and burns out port；
3rd, it is provided with stand-by power supply to cause when power is off, controller can still preserve data.
Description of the drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Reference：1st, reduction voltage circuit；2nd, the first power circuit；3rd, second source circuit；4th, the 3rd power circuit；5th,
Four power circuits；6th, rectification circuit；7th, filter circuit.
Specific embodiment
With reference to the accompanying drawings and examples, this utility model is described in detail.
In the present embodiment, PLC power carrier communication circuits and RF micro power radio communication circuits need 15V power supplys, control
Device needs 3.3V power supplys, infrared communication circuit to need 5V power supplys, RS485 telecommunication circuits to need 5V power supplys, write this reality based on this
With new.
A kind of power circuit for harvester, with reference to Fig. 1, including the reduction voltage circuit 1 electrically connected with city, and the blood pressure lowering
The electrical connection of circuit 1 it is electric for the first power supply for powering for PLC power carrier communication circuits and RF micro power radio communication circuits
Road 2, electrically connect with first power circuit 2 for power for infrared communication circuit second source circuit 3, and the drop
Volt circuit 1 electrical connection for power for RS485 telecommunication circuits the 3rd power circuit 4, and first power circuit 2 be electrically connected
Connect for the 4th power circuit 5 powered for controller.
Wherein, reduction voltage circuit 1 include the varistor and live wire serial connection being connected with live wire and zero line PTC thermistor,
And transformator, in electric power loop, when circuit is in normal condition, the electric current for flowing through PTC thermistor is less than specified electricity
Stream, PTC thermistor are in the normal state, and resistance very little does not interfere with electric ballast, by protection circuit normal work；Work as circuit
When electric current substantially exceeds rated current, PTC thermistor is suddenly generated heat, and resistance sharply increases to high-impedance state, so as to limiting or blocking electricity
Stream, protection circuit are without damage.After electric current recovers normal, PTC thermistor also automatically returns to low resistance state, and circuit just recovers
Often work.Varistor is a kind of metal-oxide semiconductor (MOS) nonlinear resistive element with Zinc Oxide as Main Ingredients and Appearance, resistance
More sensitive to voltage, when voltage reaches certain numerical value, resistance is turned on rapidly, so as to other units being effectively protected in circuit
Device will not overvoltage and damages, with good non-thread characteristic, through-current capacity is big, residual voltage level is low, action is soon and without spies such as afterflows
Point.Model LOFA12082 that transformator is adopted, using the teaching of the invention it is possible to provide virtual value is 12V ~ 15V output voltages, and is exported most in transformation
When powerful, temperature is relatively low, affects less to circuit.
Due to output or alternating current after civil power Jing transformer pressure-reducings, in addition it is also necessary to after the rectification of rectification circuit 6
The unidirectional current needed for system can just be become.So the first power circuit 2 includes the rectification circuit being connected with transformer secondary output winding
6th, and with rectification circuit 6 filter circuit 7 for electrically connecting.First rectifier bridge stack of the rectification circuit 6 using model MB10S, should
The exchange electrical input of the first rectifier bridge stack is connected to the 7th end and the 8th end of transformer secondary output winding, and negative output terminal is grounded,
Positive output end is connected to filter circuit 7, wherein, filter circuit 7 includes the electrochemical capacitor being arranged in parallel and the first electric capacity, electrolysis electricity
The positive pole of appearance is connected to the positive output end of the first rectifier bridge stack, minus earth.After the voltage step-down rectification of civil power 220V, the inside
Interference component it is a lot, understand very big to system interference if directly quoting, be that system operation is unstable, or even too high stricture of vagina
Ripple can also damage device, so the general civil power after rectification, in addition it is also necessary to process after filtering.Electrochemical capacitor is primarily served
The peak current that load occurs is cut down in energy storage effect, provides stable direct current output to electric current below, while filtering circuit is worked as
In low frequency impurity ripple, the first electric capacity be mainly filtering circuit in the middle of radio-frequency component ripple.First power circuit 2 is exported
Voltage be that PLC power carrier communication circuits and RF micro power radio communication circuits are powered.
Second source circuit 3 includes the first voltage stabilizing chip of model L7805ABV, the input of the first voltage stabilizing chip with
Outfan is connected by diode, and the anode of diode is connected to the outfan of the first voltage stabilizing chip, and it is steady that negative electrode is connected to first
The input of pressure chip.First resistor is connected with the input of the first voltage stabilizing chip, the other end ground connection of the first resistor, its
The effect of middle diode and first resistor is to provide the loop of a repid discharge：When the first voltage stabilizing chip rear end is broken down
When, such as Vout>During Vin, then L7805 is likely to breakdown；When diode and first resistor is added, normal work
Playing the role of diode in the case of work makes Vin>Vout, now circuit discharge without going past diode and first resistor, when adopting
During storage power-off, Vout>Vin, now diode current flow, electric current Jing diodes and first resistor are discharged；Due to electrolysis electricity
Appearance is a jumbo storage capacitor, and after harvester power-off, it can also provide the lasting electricity of a period of time for circuit below
Stream, that is to say, that voltage from high level directly to low level, but slowly will not can drop to low level, this feelings from high level
Reset and the terminal operation of controller are affected under condition, equally electrochemical capacitor can be quickly put through first resistor when harvester power-off
Electricity reduces high level to low level delay time.The voltage of the output of second source circuit 3 is powered for infrared communication circuit.
4th power circuit 5 includes the 3rd voltage stabilizing chip of model LM1117-ADJ, wherein, the 3rd voltage stabilizing chip it is defeated
Enter the outfan that end is connected to the first voltage stabilizing chip, the voltage needed for outfan o controller.
Three output power supply circuits of 3rd power circuit 4 and other isolate setting, are prevented from believing in telecommunication
There is potential to constitute unpredictable loop and burn out port between number reference ground.3rd power circuit 4 includes and transformator
Level winding the 5th end and the 6th end electrical connection model MB10S the second rectifier bridge stack and the second rectifier bridge stack it is just defeated
Go out the second voltage stabilizing chip of model L7805ABV of end connection, the positive output end of the second rectifier bridge stack and the second voltage stabilizing chip
Input connects, and is output as the voltage of RS485 telecommunication circuits.
In addition, power circuit also includes the stand-by power supply being connected with controller for power-off protection, the stand-by power supply is adopted
With lithium battery, storage data on the controller can be preserved in harvester power-off.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under this utility model thinking belong to protection domain of the present utility model.Should refer to
Go out, for those skilled in the art, some improvement under the premise of without departing from this utility model principle and
Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (10)
1. a kind of power circuit for harvester, including the reduction voltage circuit (1) electrically connected with city, it is characterised in that also include：
First power circuit (2), is electrically connected with the reduction voltage circuit (1), for for PLC power carrier communication circuits and the micro- work(of RF
Rate radio communication circuit is powered；
Second source circuit (3), is electrically connected with first power circuit (2), for powering for infrared communication circuit；
3rd power circuit (4), is electrically connected with the reduction voltage circuit (1), for powering for RS485 telecommunication circuits；
4th power circuit (5), is electrically connected with first power circuit (2), for powering for controller.
2. the power circuit for harvester according to claim 1, it is characterised in that first power circuit (2)
Including the rectification circuit (6), the filter circuit electrically connected with the rectification circuit (6) that electrically connect with the reduction voltage circuit (1)
(7)。
3. the power circuit for harvester according to claim 2, it is characterised in that the rectification circuit (6) adopts
First rectifier bridge stack of model MB10S, the exchange electrical input of first rectifier bridge stack are connected to reduction voltage circuit (1), bear
Output head grounding, positive output end are connected to the filter circuit (7).
4. the power circuit for harvester according to claim 3, it is characterised in that the filter circuit (7) includes
The electrochemical capacitor being arranged in parallel and the first electric capacity, the positive pole of the electrochemical capacitor are connected to the positive output end of the first rectifier bridge stack,
Minus earth.
5. the power circuit for harvester according to claim 4, it is characterised in that the second source circuit (3)
Including the first voltage stabilizing chip of model L7805ABV, input and the outfan of first voltage stabilizing chip are connected by diode
Connect, the anode of the diode is connected to the outfan of the first voltage stabilizing chip, negative electrode is connected to the input of the first voltage stabilizing chip.
6. the power circuit for harvester according to claim 1, it is characterised in that the 3rd power circuit (4)
The second rectifier bridge stack and second rectifier bridge stack including model MB10S electrically connected with the reduction voltage circuit (1) is just
Second voltage stabilizing chip of model L7805ABV of outfan connection, the positive output end of second rectifier bridge stack and the second voltage stabilizing
The input connection of chip.
7. the power circuit for harvester according to claim 4, it is characterised in that the 4th power circuit (5)
Including the 3rd voltage stabilizing chip of model LM1117-ADJ, wherein, it is steady that the input of the 3rd voltage stabilizing chip is connected to first
The outfan of pressure chip.
8. the power circuit for harvester according to claim 1, it is characterised in that the power circuit also includes using
In the stand-by power supply being connected with controller of power-off protection.
9. the power circuit for harvester according to claim 8, it is characterised in that the stand-by power supply is using lithium electricity
Pond.
10. the power circuit for harvester according to claim 1, it is characterised in that the reduction voltage circuit (1) includes
The transformator of model LOFA12082.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621248097.9U CN206180870U (en) | 2016-11-19 | 2016-11-19 | A power supply circuit for collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621248097.9U CN206180870U (en) | 2016-11-19 | 2016-11-19 | A power supply circuit for collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206180870U true CN206180870U (en) | 2017-05-17 |
Family
ID=58686896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621248097.9U Active CN206180870U (en) | 2016-11-19 | 2016-11-19 | A power supply circuit for collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206180870U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696872A (en) * | 2019-02-01 | 2019-04-30 | 华南理工大学 | A kind of high frequency oxidation power supply communicated based on CAN and RS485 |
-
2016
- 2016-11-19 CN CN201621248097.9U patent/CN206180870U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696872A (en) * | 2019-02-01 | 2019-04-30 | 华南理工大学 | A kind of high frequency oxidation power supply communicated based on CAN and RS485 |
| CN109696872B (en) * | 2019-02-01 | 2024-01-12 | 华南理工大学 | High-frequency oxidation power supply based on CAN and RS485 communication |
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| GR01 | Patent grant |