CN101783526B - Electronic switching unit without energy consumption for standby power supply of model airplane receiver - Google Patents

Electronic switching unit without energy consumption for standby power supply of model airplane receiver Download PDF

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Publication number
CN101783526B
CN101783526B CN2010101131276A CN201010113127A CN101783526B CN 101783526 B CN101783526 B CN 101783526B CN 2010101131276 A CN2010101131276 A CN 2010101131276A CN 201010113127 A CN201010113127 A CN 201010113127A CN 101783526 B CN101783526 B CN 101783526B
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resistance
power supply
type silicon
silicon transistor
main power
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CN101783526A (en
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黄宇嵩
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黄宇嵩
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Abstract

The invention belongs to model airplanes and the electronic technical field and relates to an electronic switching unit for a standby power supply of a model airplane receiver without power consumption, which comprises a main power supply, a voltage detection circuit, a level conversion and drive circuit, a power switching execution circuit, a main power supply working indicating circuit and a standby power supply. The electronic switching unit is characterized in that the voltage detection circuit, the level conversion and drive circuit and the power switching execution circuit respectively adopt a three-end micro-power-consumption voltage detector, an N-type silicon transistor, a P-type silicon transistor and a P-channel high-power field effect transistor. The electronic switching unit is formed by that a design idea of computer online emergency power supply, which is quick in response, is borrowed. According to the power consumption characteristics of the model airplane receiver and a steering engine as well as the technical requirements for a battery pack, the invention solves the problem that when the model airplane receiver is short of power in the air, the standby power supply can be quickly and directly switched to for the emergency power supply of the receiver, and can effectively control airplane crash accidents caused by the power shortage of the battery pack of the model airplane receiver.

Description

Electronic switching unit without energy consumption for standby power supply of model airplane receiver
Technical field
The invention belongs to model plane and electronic technology field, relate to a kind of electronic switching unit without energy consumption for standby power supply of model airplane receiver.
Background technology
Along with constantly popularizing of model airplane scientific and technological activities, the fan who hankers after the large level model airplane is more and more, as: gasoline engine.Yet some model airplane fan does not cause enough attention to technical problems such as airborne equipment power consumption such as the empty mould steering wheel of large level increase sharply; But rest on the cognitive level of the empty mould airborne equipment of little rank power consumption, the on-board batteries group is not carried out the omnidistance analogue test outfield of arriving on ground and let fly away.Rise incessantly, fall in-flight in the outfield, usually ignore or forgotten the dump energy problem of model airplane receiver battery pack, thereby the serious accident that leads to non-maneuverability because of the aerial short of electricity of model airplane receiver takes place often.In case model plane receive because of on-board batteries group short of electricity generation air crash out of control or accident such as lose, mostly can cause the different loss of degree to the airplane hobbyist, gently then aeromodelling airplane or receiver are impaired, and heavy then engine model is scrapped.
In order to solve this realistic problem in the model plane activity, mainly containing 3 kinds of approach can solve: the one, through increasing the capacity of on-board batteries group significantly; Next is to install and use the battery electric quantity detector additional; Three are to use electronic switching unit without energy consumption for standby power supply of model airplane receiver of the present invention.
The present invention is according to model airplane receiver, steering wheel work characteristics with to the specification requirement of battery, aspect stand-by power supply switching device shifter design: the insertion loss of abandoning is big, be prone to produce the relay that electric spark disturbs, switching time is long and weight is bigger than normal makes scheme; Avoid the big and higher single-chip microcomputer design of cost of operation technique difficulty; Do not adopt the scheme that change action is blunt, increase receiver power supply burden utilizes the idle passage of remote control equipment to carry out the remote control switching.
Along with large level model airplane payload significantly increases, the weight that stand-by power supply and electronic switching unit without energy consumption for standby power supply of model airplane receiver increase can be ignored.
Summary of the invention
Goal of the invention: problems such as serious accident take place for solving large level model airplane receiver battery pack in the present invention because of short of electricity; Be standby power supply of model airplane receiver manufacturing technology a kind of emergency, that practicality is stronger, can realize that the receiver stand-by power supply does not have the technical goal that power consumption is switched fast.
Technical scheme: test, analyze and compare through kinds of schemes; The present invention does not select long backup type emergency power supply design switching time for use; The power supply thinking of main power source and emergency power supply (UPS) is set up in the final reference computer terminal, uses for reference the online efficiently emergency power supply design concept of reflection.
Electronic switching unit without energy consumption for standby power supply of model airplane receiver is made up of main power source, voltage detecting circuit, main power source working indicating, level conversion and drive circuit, power supply switching executive circuit, stand-by power supply; It is characterized in that the voltage detecting circuit between main power source and stand-by power supply, the composition that power supply switches executive circuit are respectively: (1) voltage detecting circuit is made up of the little power consumption voltage detector of 4.75V three ends IC, resistance R 1, resistance R 2; One end of resistance R 1, an end of resistance R 2 connect the back and link to each other with voltage detector IC input 2 pin; Resistance R 2 another termination main power sources are anodal, the other end ground connection of resistance R 1; (2) in the power supply Switching power executive circuit drain D of P-channel field-effect transistor (PEFT) pipe Q4 with connect the positive pole of electrochemical capacitor C2, an end and the model airplane receiver positive source interface of resistance R 9 respectively after the drain D of P-channel field-effect transistor (PEFT) pipe Q5 links to each other.Resistance R 9 other end sending and receiving light diode D5 are anodal, the minus earth of Light-Emitting Diode D5.
Components and parts annexation each other in the circuit
1. main power source (6V) input circuit is made up of short circuit cap, 2 groups of plug-in units and 3 high-power silicon rectifier diode D1~D3; Forward seals in 3 high-power silicon rectifier diode D1~D3 and carries out step-down in the loop; It is anodal that silicon rectifier diode D1 positive pole connects the 7.4V poly-lithium battery, to adapt to model airplane receiver, steering wheel nominal operation voltage.
2. the main power source working indicating is made up of voltage detector IC, dropping resistor R3 and light-emitting diode D4,1 pin connecting resistance R3, one end of voltage detector IC, the positive pole of the other end sending and receiving optical diode D4 of resistance R 3, the minus earth of light-emitting diode D4.
3. level conversion and drive circuit are made up of N silicon transistor npn npn Q1, P silicon transistor npn npn Q2, N silicon transistor npn npn Q3 and resistance R 4, resistance R 5, resistance R 6, resistance R 7 and resistance R 8.The end of the base stage connecting resistance R4 of N type silicon transistor Q1, another termination main power source of resistance R 4 is anodal, the end of the collector electrode connecting resistance R5 of N type silicon transistor Q1,1 pin of another termination voltage detector IC of resistance R 5, the grounded emitter of N type silicon transistor Q1.
4.P 1 pin of type silicon transistor Q2 base stage and voltage detector IC, resistance R 6 one ends join; Another termination main power source of resistance R 6 is anodal; The emitter of P type silicon transistor Q2 connects the main power source positive pole; P type silicon transistor Q2 collector electrode connecting resistance R7 one end and P-channel field-effect transistor (PEFT) pipe Q5 grid G, the other end ground connection of resistance R 7.
5.N type silicon transistor Q3 base stage connects 1 pin of voltage detector IC, N type silicon transistor Q3 collector electrode connects the grid G with an end and the P-channel field-effect transistor (PEFT) pipe Q4 of connecting resistance R8, and another termination main power source of resistance R 8 is anodal, the grounded emitter of N type silicon transistor Q3.
6. the source S of P-channel field-effect transistor (PEFT) pipe Q5 connects the stand-by power supply positive pole in the Switching power executive circuit, the minus earth of stand-by power supply.
The circuit working principle
1. when main power source input voltage >=4.75V; 1 pin of the little power consumption voltage detector of three ends IC is a high level; N type silicon transistor Q1, P type silicon transistor Q2, N type silicon transistor Q3 all are in conducting state, P type silicon transistor Q2 collector electrode output high level, and the grid G that makes P-channel field-effect transistor (PEFT) pipe Q5 is that high level ends; P-channel field-effect transistor (PEFT) pipe Q4 conducting, at this moment main power source is supplied power to load (model airplane receiver) through the drain D of P-channel field-effect transistor (PEFT) pipe Q4;
When main power voltage drop to gradually≤during 4.75V, 1 pin of the little power consumption voltage detector of three ends IC is a low level, 3 transistor Q1~Q3 all are in cut-off state, the grid G of P-channel field-effect transistor (PEFT) pipe Q4 connects high level, thereby FET Q4 ends.P-channel field-effect transistor (PEFT) pipe Q5 grid is in low level, makes FET Q5 conducting, and at this moment stand-by power supply is supplied power to load (model airplane receiver) through the drain D of P-channel field-effect transistor (PEFT) pipe Q5;
3. fall or break down and during sudden power when main power voltage; The little power consumption voltage detectors of three ends (IC), transistor (Q1, Q2, Q3) and FET Q4 be the cisco unity malfunction because of short of electricity all; And FET (Q5) grid (G) connects low level and be in conducting state, and so at this moment stand-by power supply is supplied power to load (model airplane receiver) through the drain electrode (D) of FET (Q5);
4. can use 7.4V poly-lithium battery group in order to let standby power supply of model airplane receiver not have the power consumption switching device shifter; In the main power source input circuit, seal in 3 high-power silicon rectifier diodes (D1~D3) carry out step-down, so that adapt to the operating voltage of receiver and steering wheel nominal 6V.
Beneficial effect: the bright described electronic switching unit without energy consumption for standby power supply of model airplane receiver of we; It can solve the automatic emergency service of being accomplished model airplane receiver by stand-by power supply that switches after the aerial short of electricity of large level model airplane receiver crisply; Can effectively contain because of accidents such as model plane air crash take place the short of electricity of model airplane receiver battery pack, for the flight safety that ensures model airplane increases the airborne configuration of the model plane of filling out a kind of practicality.
Description of drawings
Fig. 1 is an electronic switching unit without energy consumption for standby power supply of model airplane receiver operation principle block diagram
Fig. 2 is an electronic switching unit without energy consumption for standby power supply of model airplane receiver circuit working schematic diagram.
Fig. 2 circuit theory diagrams left side is a rechargeable battery main power source interface, and the circuit theory diagrams right side is the stand-by power supply interface.Use 5 joint rechargeable battery set when short circuit cap is inserted in a choice of location, short circuit cap is inserted in the b choice of location and uses 7.4V poly-lithium battery group; Rechargeable battery set and model airplane receiver use Du Pont's connector, and 7.4V poly-lithium battery group is used T type connector.
Embodiment
The electronic switching unit without energy consumption for standby power supply of model airplane receiver circuit is formed
Standby power supply of model airplane receiver does not have the power consumption switching device shifter and is made up of 6 parts such as main power source, the little power consumption voltage detecting circuit of 4.75V three ends, main power source working indicating, level conversion and drive circuit, Switching power executive circuit, stand-by power supplies.
Specification requirement according to Fig. 2 and description of drawings and the following stated is implemented, and can realize the present invention.
Components and parts are selected and circuit debugging
The little power consumption voltage detector of three ends should be selected for use open and leak the little power consumption voltage detector of output; If choosing is the voltage detector of 4.75V less than the voltage detecting value; Can select to replace a little less than little power consumption voltage detector of 4.75V (in 10%); Through accurately adjusting the resistance of R2, make the voltage detecting value of circuit reach 4.75V then.
In order to reduce the insertion loss of power supply significantly, the FET in the circuit should be selected the very little P channel high power FET of conduction voltage drop.Because of selecting the high-power effect tube power of P ditch place where Taoist rites are performed surplus very big, so when making, need not install radiator additional.
Be effectively to alleviate the influence that this device main power source, stand-by power supply switch moment model airplane receiver power supply electric voltage dropping, the capacity of electrochemical capacitor (C2) >=1000 μ F are for well.
In order to alleviate complete machine weight, this device PCB circuit board uses the bare board mode, need not add casing.
Components and parts title and important technological parameters
Element number The components and parts title Major parameter Quantity Remarks
IC The little power consumption voltage detector of three ends The voltage detecting value is 4.75V 1 SMD, 3 pin
D1~D3 6A05 (silicon rectifier diode) 6A/50V 3 Or 6A1
D4、D5 Super bright red light emitting diodes Φ5LED 2 Being fit to the outfield uses
Q1、Q3 2SC9013 TO-92 plastic packaging silicone tube 2 ?
Q2 2SC9012 TO-92 plastic packaging silicone tube 1 Or 2SC9015
Q4、Q5 IRF9Z22 (P-channel field-effect transistor (PEFT) pipe) The TO-220 encapsulation 2 Or IRF9Z30
C1、C2 Electrochemical capacitor 1000μF/10V 2 Vertical
R1 Metalfilmresistor 3.3KΩ 1 ?
*R2 Metalfilmresistor 39~390Ω 1 Adjust resistance value as required
R4R7R8 Metalfilmresistor 10KΩ 3 ?
R5 Metalfilmresistor 4.7KΩ 1 ?
R6 Metalfilmresistor 1KΩ 1 ?
R3、R9 Metalfilmresistor 470Ω 2 ?
Connector DIP Du Pont connector Stitch spacing 2.54mm 2 covers 3 pins
Short circuit cap DIP Du Pont specification Stitch spacing 2.54mm 1 2 pins
Connector T type plug, socket 2 pin 1 cover Solderable
Technical indicator
1. main power voltage: 6.0V (5 joint rechargeable batteries, or select 2S1P poly-lithium battery 7.4V with short circuit cap)
2. backup power source voltage: 6.0V (5 joint 7#1000mAH rechargeable battery)
3. working method: online
4. no-load current :≤3mA (not containing the LED light power consumption)
5. load current: >=5.2A (the moment power consumption of 5 model plane standard steering wheels)
6. main power source is by operating voltage: 4.75V
7. connector: DIP Du Pont plug-in unit, T type plug-in unit
8. plant bulk: long 37mm * wide 22mm * 25mm is high
9. complete machine full weight :≤26.6g
Operation instruction
1. in order to ensure the flight safety of model plane, whether the performance of main power source, stand-by power supply is stablized is necessarily accomplished to know what's what, and will carry out can on model airplane, formally using after the simulation loop charge and discharge test for brand-new rechargeable battery;
2. main power source, stand-by power source can use the battery performance rechargeable battery set identical with capacity.Main power source can be selected the 7.4V poly-lithium battery for use;
3. the circuit theory diagrams left side is the main power source interface, and the circuit theory diagrams right side is the stand-by power supply interface.Use 5 joint rechargeable battery set when short circuit cap is inserted in a choice of location, short circuit cap is inserted in the b choice of location and uses 7.4V poly-lithium battery group;
4. in case find that the main power source relay indicating light LED red light emitting diodes (D4) on the electronic switching unit without energy consumption for standby power supply of model airplane receiver extinguishes; Explain that then main power source ends operating voltage and dropped to 4.75V; Stand-by power supply is launched; The operator should stop flight immediately, and in time changes the battery pack of main power source.

Claims (2)

1. electronic switching unit without energy consumption for standby power supply of model airplane receiver, it by main power source, voltage detecting circuit, main power source working indicating, level conversion and drive circuit, power supply switch executive circuit, stand-by power supply is formed, its characteristic comprises:
Voltage detecting circuit is made up of the little power consumption voltage detector of 4.75V three ends IC, resistance R 1 and resistance R 2; One end of resistance R 1, an end of resistance R 2 link to each other with the input (the 2nd pin) of voltage detector IC; Another termination main power source of resistance R 2 is anodal, the earth terminal of the other end of resistance R 1 and voltage detector IC (the 3rd pin) ground connection;
Level conversion and drive circuit are made up of N type silicon transistor Q1, N type silicon transistor Q3, P type silicon transistor Q2 and resistance R 4, resistance R 5, resistance R 6, resistance R 7, resistance R 8; The end of the base stage connecting resistance R4 of N type silicon transistor Q1; Another termination main power source of resistance R 4 is anodal; The end of the collector electrode connecting resistance R5 of N type silicon transistor Q1, the output (the 1st pin) of another termination voltage detector IC of resistance R 5, the grounded emitter of N type silicon transistor Q1; The output (the 1st pin) of the base stage of P type silicon transistor Q2 and voltage detector IC, an end of resistance R 6 join; Another termination main power source of resistance R 6 is anodal; The emitter of P type silicon transistor Q2 connects the main power source positive pole; The end of the collector electrode connecting resistance R7 of P type silicon transistor Q2, the other end ground connection of resistance R 7; N type silicon transistor Q3 base stage connects the output (the 1st pin) of voltage detector IC, the end of the collector electrode connecting resistance R8 of N type silicon transistor Q3, and resistance R 8 another termination main power sources are anodal, N type silicon transistor Q3 grounded emitter;
Drain electrode that power supply switches P-channel field-effect transistor (PEFT) pipe Q4 in the executive circuit and the positive pole that meets electrochemical capacitor C2 after the drain electrode of P-channel field-effect transistor (PEFT) pipe Q5 links to each other; The source electrode of P-channel field-effect transistor (PEFT) pipe Q4 connects the positive pole of main power source; The grid of P-channel field-effect transistor (PEFT) pipe Q4 connects the collector electrode of N type silicon transistor Q3; The grid of P-channel field-effect transistor (PEFT) pipe Q5 connects the collector electrode of P type silicon transistor Q2, and the source electrode of P-channel field-effect transistor (PEFT) pipe Q5 connects the positive pole of stand-by power supply, the minus earth of stand-by power supply; The positive source interface of one termination model airplane receiver of resistance R 9, the positive pole of the other end sending and receiving light diode D5 of resistance R 9, the minus earth of Light-Emitting Diode D5.
2. electronic switching unit without energy consumption for standby power supply of model airplane receiver according to claim 1; It is characterized in that: the main power source working indicating is made up of the little power consumption voltage detector of three ends IC, resistance R 3 and light-emitting diode D4; The end of the output of voltage detector IC (the 1st pin) connecting resistance R3; The positive pole of the other end sending and receiving optical diode D4 of resistance R 3, the minus earth of light-emitting diode D4.
CN2010101131276A 2010-01-31 2010-01-31 Electronic switching unit without energy consumption for standby power supply of model airplane receiver Expired - Fee Related CN101783526B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102570593A (en) * 2012-01-29 2012-07-11 黄勇 Airborne-type model airplane receiver emergency power supply conversion equipment
CN104201416B (en) * 2014-08-22 2016-10-19 华南师范大学 A kind of high voltage lithium ion battery functional electrolyte and preparation method and application

Citations (6)

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Publication number Priority date Publication date Assignee Title
US5325209A (en) * 1991-04-18 1994-06-28 Ricoh Company, Ltd. Multiplex image forming apparatus
CN2429902Y (en) * 2000-07-17 2001-05-09 卢培增 Switch with status indicator
CN1825732A (en) * 2005-02-25 2006-08-30 冲电气工业株式会社 Power supply switch circuit, microcomputer, terminal device and switch controlling method
CN101051752A (en) * 2006-04-03 2007-10-10 美国凹凸微系有限公司 Power supply system of hybrid switching power commutator, power supply unit and method thereof
CN201097308Y (en) * 2007-10-30 2008-08-06 李全忠 Intelligent 3-in-1 computer power
CN201805269U (en) * 2010-01-31 2011-04-20 黄宇嵩 Zero-power loss electronic switching device of standby power source of model airplane receiver

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325209A (en) * 1991-04-18 1994-06-28 Ricoh Company, Ltd. Multiplex image forming apparatus
CN2429902Y (en) * 2000-07-17 2001-05-09 卢培增 Switch with status indicator
CN1825732A (en) * 2005-02-25 2006-08-30 冲电气工业株式会社 Power supply switch circuit, microcomputer, terminal device and switch controlling method
CN101051752A (en) * 2006-04-03 2007-10-10 美国凹凸微系有限公司 Power supply system of hybrid switching power commutator, power supply unit and method thereof
CN201097308Y (en) * 2007-10-30 2008-08-06 李全忠 Intelligent 3-in-1 computer power
CN201805269U (en) * 2010-01-31 2011-04-20 黄宇嵩 Zero-power loss electronic switching device of standby power source of model airplane receiver

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开平4-312324 1992.11.04

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