CN201976006U - Electronic transformer with solar power supply and push-pull oscillator - Google Patents
Electronic transformer with solar power supply and push-pull oscillator Download PDFInfo
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- CN201976006U CN201976006U CN2011201110443U CN201120111044U CN201976006U CN 201976006 U CN201976006 U CN 201976006U CN 2011201110443 U CN2011201110443 U CN 2011201110443U CN 201120111044 U CN201120111044 U CN 201120111044U CN 201976006 U CN201976006 U CN 201976006U
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Abstract
The utility model relates to the technical field of electronics, in particular to an electronic transformer with a solar power supply and a push-pull oscillator, which comprises the solar power supply and an inverter. The solar power supply comprises a solar cell array, an overvoltage detection controller, an undervoltage detection controller, a voltage adapter and a battery, the inverter comprises the push-pull oscillator, a high-power MOS (metal oxide semiconductor) field effect tube full-wave rectification circuit and an overload detection and protection circuit, and the output of the push-pull oscillator is connected into high-power MOS field effect tube full-wave rectification for direct voltage driving of light-emitting diode (LED) array lamps. The electronic transformer has a unique and efficient circuit and can be widely applied in lighting of the high-power LED array lamps, landscaping, advertising or driving other direct-current electrical appliances in vehicles, trains, ships and other places with no alternating-current mains power or no convenient access to power.
Description
Technical field
The utility model relates to electronic technology field, specifically is sun-generated electric power push-pull oscillator electronic transformer.
Background technology
Can supply or the open-air inconvenient occasion of leisure power supply of encamping at automobile, train and not have electric main of ship, adopt sun-generated electric power driving LED light emitting diode matrix lamp can produce bright light source, the photoelectric conversion efficiency height, light is soft pleasant, easy to use, life-span is long, is widely used in view and advertisement.Yet, it is big to drive large-power light-emitting diodes led array lamp inverter current, require vibration output high-power, electric current just must increase when operating voltage was low, therefore, big current oscillation triode power consumption temperature rise causes that the pipe electric current and voltage changes, cause frequency of oscillation to change, heavy current warming also makes coil magnetic permeability decline inductance value reduce simultaneously, and serious generation saturation inductors becomes very little, and then influence light tube electric voltage and electric current and change lamp luminescence brightness instability.Very easily burn out device.
Summary of the invention
The purpose of this utility model provides the power supply power supply, drags a kind of sun-generated electric power push-pull oscillator electronic transformer than the high-power lamp load.
The utility model technical solution is: comprise by solar battery array, overvoltage detects controller, under-voltage detection controller, the voltage adapter, sun-generated electric power and inverter that storage battery is formed, comprise that also inverter is by pusb pull oscilator, high-power MOS field effect transistor full-wave rectifying circuit and overload detection protective circuit are formed, pusb pull oscilator is a resonant tank by ferrimagnetism primary inductance shunt capacitance, the primary inductance centre cap inserts sun-generated electric power through high frequency choke inductance and shunt capacitance, the resonant tank two ends respectively and connect two high-power oscillating tube collector electrodes, emitter series resistance ground connection, resonant tank two ends cross-couplings also in parallel is to pipe base resistance quiescent biasing and electric capacity positive feedback are constituted pusb pull oscilator, two high-power oscillating tube base stages also connect control signal mouthpiece collector electrode, mouthpiece base stage and collector electrode connect voltage negative feedback biasing resistor, grounded emitter, the pusb pull oscilator power output inserts high-power MOS field effect transistor full-wave rectifying circuit output dc voltage for load by ferrimagnetism transformer secondary output inductance, the overload detection protective circuit is by wearing magnet ring on the full-wave rectifying circuit output current bus, and the magnetic ring coil induced potential is controlled oscillating tube through diode detection;
Wherein, high-power MOS field effect transistor full-wave rectifying circuit is made of two high-power MOS field effect transistor, switching diode and resistance, two high-power MOS field effect transistor source electrodes connect the two ends of ferrimagnetism transformer secondary output inductance respectively, secondary inductance centre cap ground connection, two high-power MOS field effect transistor gate bias resistance are connected on grid, leak two ends, grid is by the two ends of switching diode parallel resistance intersection access ferrimagnetism transformer secondary output inductance, and two pipe drain electrodes also are connected into the full-wave rectification output dc voltage for load;
Overvoltage detects controller and connects the voltage stabilizing didoe reference voltage by operational amplifier A 1 in-phase input end, inverting input connects battery tension, operational amplifier A 1 output is amplified through the triode electric current and is succeeded electric apparatus coil, and normally-closed contact switches the solar battery array pressure-controlled of charging; Under-voltage detection controller connects the voltage stabilizing didoe reference voltage by operational amplifier A 2 inverting inputs, in-phase input end connects battery tension, operational amplifier A 2 output is amplified through the triode electric current and is succeeded electric apparatus coil, and normally opened contact switches the solar battery array under-voltage control of discharging.
The utility model produces useful good effect: sun-generated electric power power supply push-pull oscillator is by obtaining stable high power load ability, the directly continuous LC frequency-selecting dual-stage amplifier of capacitance-resistance cross-couplings push-pull oscillator output input, it is very strong to vibrate, not only efficient, even-order harmonic is cancelled out each other, reduce the inverter power device power consumption, be widely used in the occasion light emitting diode LED lighting or other dc electric apparatus that do not have electric main or power supply inconvenience.
Description of drawings
Fig. 1 technical solutions of the utility model functional-block diagram.
Fig. 2 pusb pull oscilator and overload detection protective circuit.
Fig. 3 high-power MOS field effect transistor full-wave rectifying circuit.
Overvoltage of Fig. 4 sun-generated electric power and under-voltage detection controller circuitry.
Embodiment
With reference to Fig. 1; 2 and Fig. 4; the utility model specific implementation method and embodiment: comprise by solar battery array 1a; overvoltage detects controller 1b; under-voltage detection controller 1c; voltage adapter 1d; sun-generated electric power 1 and inverter that storage battery E forms; comprise that also inverter is by pusb pull oscilator 4; high-power MOS field effect transistor full-wave rectifying circuit 3 and overload detection protective circuit 2 are formed; pusb pull oscilator 4 is a resonant tank by ferrimagnetism transformer T1 primary inductance L1 shunt capacitance C3; primary inductance L1 centre cap is through high frequency choke inductance L 4; shunt capacitance C4 inserts sun-generated electric power 1; the resonant tank two ends respectively and meet two high-power oscillating tube Q1; the Q2 collector electrode; emitter series resistance R3; R6 ground connection; resonant tank two ends cross-couplings also in parallel arrives pipe base resistance R1; R2 quiescent biasing and capacitor C 1; the C2 positive feedback constitutes pusb pull oscilator; two high-power oscillating tube base stages also meet control signal mouthpiece Q3; the Q4 collector electrode; Q3; Q4 base stage and collector electrode meet voltage negative feedback biasing resistor R4; R5; grounded emitter; pusb pull oscilator 4 power outputs connect high-power MOS field effect transistor full-wave rectifying circuit 3 output dc voltages for load RL by ferrimagnetism transformer T1 secondary inductance L2; overload detection protective circuit 2 is by wearing magnet ring on the high-power MOS field effect transistor full-wave rectifying circuit output current bus, and magnetic ring coil L3 induced potential is through diode VD3 detection control oscillating tube Q1; Q2.Overload detection protective circuit 2 detects voltage capacitor C5 filtering, resistance R 9 and resistance R 7, R8 current limliting access interface management and control system oscillating tube Q1, Q2; when load short circuits or loose contact produce big electric current; detect voltage and make Q3, Q4 saturation conduction, oscillating tube Q1, Q2 are by failure of oscillation, and instant rising protected.Diode VD1, VD2 protection oscillating tube is avoided high back-pressure and is punctured.
Capacitance-resistance cross-couplings pusb pull oscilator is actual to be to export the LC frequency-selecting dual-stage amplifier of directly linking input, it is very strong to vibrate, two high-power oscillating tube Q1, Q2 be in turn saturated with end, with zero quiescent current half period conducting, opposite three rank of collector current phase place and high-order odd harmonic are zero, not only efficient, and have even-order harmonic and cancel out each other, reduce inverter power device heat power consumption, lowlyer be suppressed at resonant tank inductance centre cap feedback and connect power series high frequency choke inductance and shunt capacitance, suppress the even-order harmonic power consumption, load is output as pure sine wave.
Fig. 3, high-power MOS field effect transistor full-wave rectifying circuit, insert the two ends of ferrimagnetism transformer T1 secondary inductance L2 respectively by two high-power MOS field effect transistor Q5, Q6 source electrodes, T1 secondary inductance L2 centre cap ground connection, grid inserts the two ends of ferrimagnetism transformer T1 secondary inductance L2 through switching diode VD4, VD5 parallel resistance R11, R13 intersection, and provide gate bias with resistance R 10, R12, switching diode VD4, VD5 make grid quicken upset, and two pipe drain electrodes also are connected into full-wave rectification output dc voltage supply load RL.This electronic transformer output voltage, power are determined by pusb pull oscilator and the primary and secondary inductance ratio of ferrimagnetism transformer T1 and supply voltage, electric current.Rectification circuit is without electrochemical capacitor filtering, and internal resistance is low, and response is fast.Be suitable for driving large-power light-emitting diodes led array lamp or other dc electric apparatus.
Fig. 4; overvoltage detects controller 1b when storage battery E voltage is higher than voltage stabilizing didoe VD8 reference voltage; A1 is output as low level; triode Q7 drives relay J 1 and discharges J1-1 normally-closed contact cut-out charge circuit; protection storage battery E overvoltage charging, storage battery E voltage are when being reduced to the VD8 reference voltage under the illumination power consumption, and the anti-phase input current potential of A1 is lower than the homophase reference voltage; be output as high level, relay J 1 adhesive J1-1 normally-closed contact is connected charge circuit.Under-voltage detection controller 1c is when storage battery E voltage is lower than voltage stabilizing didoe VD10 reference voltage; A2 is output as low level; triode Q8 drives relay J 2 and discharges J2-1 normally opened contact cut-out discharge loop; the under-voltage discharge of protection storage battery E; when storage battery E is higher than the VD10 reference voltage along with charging voltage rises; A2 homophase input current potential is higher than anti-phase reference voltage, is output as high level, and relay J 2 adhesive J2-1 normally opened contacts are connected discharge loop.Resistance R 14, R15, R16 and R19, R20, R21 and potentiometer RP1, RP2 dividing potential drop insert operational amplifier homophase and inverting input respectively.Adjust operational amplifier voltage negative feedback resistance R17, R22 and potentiometer RP1, RP2 and reach the handoff threshold value.Resistance R 18, R23 play metering function.Diode VD6 prevents reverse charge, and storage battery E discharges to solar battery array 1a when utilizing unilateal conduction to avoid solar battery array 1a night or rainy day not to generate electricity or when short circuit occurring.The pond reversal connection of diode VD7 electricity storage preventing when storage battery E polarity connects the inverse time conducting, produces big electric current with fuse F1 quick fuse, plays protective action.Diode VD9, VD11 absorb relay J 1, J2 coil reverse potential, and protection punctures triode Q7, Q8.Voltage adapter 1d connects pusb pull oscilator 4 power ends.
Present embodiment sun-generated electric power voltage 30V, push-pull oscillator electric current 1.6A, operating frequency 47KHZ, high-power MOS field effect transistor full-wave rectification output dc voltage 12V, electric current 3.4A coupling 41W LED array lamp, efficient 85%, the oscillating tube radiator temperature is limited in and is lower than 40 ℃.
Claims (3)
1. sun-generated electric power push-pull oscillator electronic transformer; it is characterized in that: comprise by solar battery array; overvoltage detects controller; under-voltage detection controller; the voltage adapter; sun-generated electric power and inverter that storage battery is formed; comprise that also inverter is by pusb pull oscilator; high-power MOS field effect transistor full-wave rectifying circuit and overload detection protective circuit are formed; pusb pull oscilator is a resonant tank by ferrimagnetism primary inductance shunt capacitance; the primary inductance centre cap inserts sun-generated electric power through high frequency choke inductance and shunt capacitance; the resonant tank two ends respectively and connect two high-power oscillating tube collector electrodes; emitter series resistance ground connection; resonant tank two ends cross-couplings also in parallel is to pipe base resistance quiescent biasing and electric capacity positive feedback are constituted pusb pull oscilator; two high-power oscillating tube base stages also connect control signal mouthpiece collector electrode; mouthpiece base stage and collector electrode connect voltage negative feedback biasing resistor; grounded emitter; the pusb pull oscilator power output inserts high-power MOS field effect transistor full-wave rectifying circuit output dc voltage for load by ferrimagnetism transformer secondary output inductance; the overload detection protective circuit is by wearing magnet ring on the full-wave rectifying circuit output current bus, and the magnetic ring coil induced potential is controlled oscillating tube through diode detection.
2. sun-generated electric power push-pull oscillator electronic transformer according to claim 1, it is characterized in that: high-power MOS field effect transistor full-wave rectifying circuit is by two high-power MOS field effect transistor, switching diode and resistance constitute, two high-power MOS field effect transistor source electrodes connect the two ends of ferrimagnetism transformer secondary output inductance respectively, secondary inductance centre cap ground connection, two high-power MOS field effect transistor gate bias resistance are connected on grid, leak two ends, grid is by the two ends of switching diode parallel resistance intersection access ferrimagnetism transformer secondary output inductance, and two pipe drain electrodes also are connected into the full-wave rectification output dc voltage for load.
3. sun-generated electric power push-pull oscillator electronic transformer according to claim 1, it is characterized in that: overvoltage detects controller and connects the voltage stabilizing didoe reference voltage by operational amplifier A 1 in-phase input end, inverting input connects battery tension, operational amplifier A 1 output is amplified through the triode electric current and is succeeded electric apparatus coil, and normally-closed contact switches the solar battery array pressure-controlled of charging; Under-voltage detection controller connects the voltage stabilizing didoe reference voltage by operational amplifier A 2 inverting inputs, in-phase input end connects battery tension, operational amplifier A 2 output is amplified through the triode electric current and is succeeded electric apparatus coil, and normally opened contact switches the solar battery array under-voltage control of discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201110443U CN201976006U (en) | 2011-04-03 | 2011-04-03 | Electronic transformer with solar power supply and push-pull oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201110443U CN201976006U (en) | 2011-04-03 | 2011-04-03 | Electronic transformer with solar power supply and push-pull oscillator |
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| CN201976006U true CN201976006U (en) | 2011-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011201110443U Expired - Fee Related CN201976006U (en) | 2011-04-03 | 2011-04-03 | Electronic transformer with solar power supply and push-pull oscillator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112736882A (en) * | 2020-12-28 | 2021-04-30 | 深圳市虹远通信有限责任公司 | Control method for reducing dynamic and static power consumption of PIN diode during high-speed switching |
-
2011
- 2011-04-03 CN CN2011201110443U patent/CN201976006U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112736882A (en) * | 2020-12-28 | 2021-04-30 | 深圳市虹远通信有限责任公司 | Control method for reducing dynamic and static power consumption of PIN diode during high-speed switching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20130403 |