CN201976001U - Electronic transformer with solar power supply and bridge type oscillator - Google Patents
Electronic transformer with solar power supply and bridge type oscillator Download PDFInfo
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- CN201976001U CN201976001U CN2011201106170U CN201120110617U CN201976001U CN 201976001 U CN201976001 U CN 201976001U CN 2011201106170 U CN2011201106170 U CN 2011201106170U CN 201120110617 U CN201120110617 U CN 201120110617U CN 201976001 U CN201976001 U CN 201976001U
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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 bridge type 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 bridge type 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 bridge type oscillator is connected into high-power MOS field effect tube full-wave rectification to provide loads for direct-current voltages. The electronic transformer has a unique and efficient circuit and can be widely applied in lighting of light-emitting diode (LED) array lamps 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 a kind of sun-generated electric power bridge-type oscillating electron 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 LED light emitting diode matrix lamp can produce bright light and penetrate the photoelectric conversion efficiency height, light is soft pleasant, easy to use, the 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, and therefore, big current oscillation triode power consumption temperature rise causes that the pipe electric current and voltage changes, heavy current warming also makes coil magnetic permeability decline inductance value reduce simultaneously, serious generation saturation inductors becomes very little, and then influences light tube electric voltage and electric current change, lamp luminescence brightness instability.Very easily burn out device.
Summary of the invention
The purpose of this utility model provides the sun-generated electric power power supply, drags a kind of sun-generated electric power bridge-type oscillating electron transformer of high power 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 bridge-type oscillator, high-power MOS field effect transistor full-wave rectifying circuit and overload detection protective circuit are formed, bridge-type oscillator is a resonant tank by ferrimagnetism primary inductance shunt capacitance, the resonant tank two ends respectively and connect two high-power oscillating tube collector electrodes of PNP and two high-power oscillating tube collector electrodes of NPN, two high-power oscillating tube emitters of PNP connect the sun-generated electric power positive pole, two high-power oscillating tube grounded emitters of NPN, complementary series feed power supply, fast extensive diode in parallel between four high-power oscillating tube collector electrodes and the emitter, resonant tank two ends cross-couplings also in parallel is to pipe base resistance quiescent biasing and electric capacity positive feedback are constituted bridge-type oscillator, two high-power oscillating tube base stages of NPN also connect the mouthpiece collector electrode of control signal, mouthpiece base stage and collector electrode connect voltage negative feedback biasing resistor, grounded emitter, the bridge-type oscillator power output inserts high-power MOS field effect transistor full-wave rectifying circuit by ferrimagnetism transformer secondary output inductance, it is output as direct voltage for load, the overload detection protective circuit through magnet ring inductance induced potential diode detection, detects voltage access interface management and control system oscillating tube by load current;
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 amplifier A1 in-phase input end, and inverting input connects battery tension, and amplifier A1 output is amplified through the triode electric current and 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 amplifier A2 inverting input, and in-phase input end connects battery tension, and amplifier A2 output is amplified through the triode electric current and 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 bridge-type oscillator, and the complementary series feed power supply of circuit, the high electric current of supply voltage is little, and power consumption significantly reduces, and it is very strong to vibrate, and power output is two times of push-pull oscillator.Capacitance-resistance cross-couplings full-bridge hunting power is synthetic not only efficient, and opposite three rank of collector current phase place and high-order odd harmonic are zero, and even-order harmonic is cancelled out each other, and is output as pure sine wave.The full-wave rectification of high-power MOS field effect transistor is without electrochemical capacitor filtering, and response is fast.Be widely used in the occasion DC-DC conversion that does not have electric main or power supply inconvenience, especially be fit to drive large-power light-emitting diodes LEC array lamp.
Description of drawings
Fig. 1 technical solutions of the utility model functional-block diagram.
Fig. 2 bridge-type oscillator circuit.
Field effect transistor full-wave rectification of Fig. 3 high-power MOS and overload detection protective 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 bridge-type oscillator 4; high-power MOS field effect transistor full-wave rectifying circuit 3 and overload detection protective circuit 2 are formed; bridge-type oscillator 4 is a resonant tank by ferrimagnetism transformer T1 primary inductance L1 shunt capacitance C0; the resonant tank two ends respectively and meet two high-power oscillating tube Q1 of PNP; Q2 collector electrode and two high-power oscillating tube Q3 of NPN; the Q4 collector electrode; two high-power oscillating tube Q1 of PNP; the Q2 emitter connects sun-generated electric power 1 positive pole; two high-power oscillating tube Q3 of NPN; the Q4 grounded emitter; complementary series feed power supply; four high-power oscillating tube Q1; Q2 and Q3; fast extensive diode VD1 in parallel between Q4 collector electrode and the emitter; VD2 and VD3; VD4; resonant tank two ends cross-couplings also in parallel arrives pipe base resistance R1; R2 and R3; R4 quiescent biasing and capacitor C 1; C2 and C3; the C4 positive feedback constitutes bridge-type oscillator; two high-power oscillating tube Q3 of NPN; the Q4 base stage also meets control signal mouthpiece Q5; the Q6 collector electrode; mouthpiece Q5; Q6 base stage and collector electrode meet voltage negative feedback biasing resistor R5; R6; grounded emitter; bridge-type oscillator 4 power outputs insert high-power MOS field effect transistor full-wave rectifying circuit 3 by ferrimagnetism transformer T1 secondary inductance L2, and output dc voltage is for load.
Bridge-type oscillator is intercoupled and is formed by PNP, the push-pull oscillator of two symmetrical capacitance-resistance cross-couplings of complementation of NPN triode, the push-pull oscillator of capacitance-resistance cross-couplings is actual to be the directly continuous two-stage LC frequency selective amplifier of output input, high-power oscillating tube Q1, Q2 and Q3, the Q4 angle of flow are 90 degree alternations, it is very strong to vibrate, output current is half cosine wave pulse, through resonant tank decay harmonic wave, opposite three rank of collector current phase place and high-order odd harmonic are zero, even-order harmonic is cancelled out each other, and is output as pure sine wave.Not only efficient, complementary series feed power supply, the high electric current of supply voltage is little, and power output low in energy consumption is big, is two times of pusb pull oscilator.
Fig. 3, high-power MOS field effect transistor full-wave rectifying circuit is by two high-power MOS field effect transistor Q7, Q8 full-wave rectification output dc voltage, Q7, the Q8 source electrode inserts the two ends of ferrimagnetism transformer T1 secondary inductance L2 respectively, its inductance centre cap ground connection, Q7, the Q8 grid is by switching diode VD5, VD6 parallel resistance R12, the R14 intersection inserts the two ends of ferrimagnetism transformer T1 secondary inductance, with resistance R 11, R13 provides gate bias, switching diode VD5, VD6 makes grid quicken upset, Q7, Q8 two pipe drain electrodes also are connected into full-wave rectification output dc voltage supply load, rectification circuit is without electrochemical capacitor filtering, it is fast to have the internal resistance low-response, and overload capacity is strong.This electronic transformer output dc voltage, power are determined by bridge-type oscillator and the elementary L1 of ferrimagnetism transformer T1, secondary L2 inductance ratio and supply voltage, electric current.
Overload detection protective circuit 2 through the 3 induced potential diode VD7 detections of magnet ring inductance L, detects voltage through capacitor C 5 filtering by load current, resistance R 7, R8 current limliting access interface pipe Q5, Q6 control oscillating tube Q3, Q4 and Q1, Q2.When load short circuits or loose contact produce big electric current, overload detection voltage makes Q5, Q6 saturation conduction, and Q3, Q4 and Q1, Q2 shield immediately by failure of oscillation.
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 Q9 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 Q10 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 15, R16, R17 and R20, R21, R22 and potentiometer RP1, RP2 dividing potential drop insert operational amplifier homophase and inverting input respectively.Adjust operational amplifier voltage negative feedback resistance R18, R23 and potentiometer RP1, RP2 and reach the handoff threshold value.Resistance R 19, R24 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 Q9, Q10.Voltage adapter 1d connects bridge-type oscillator 4 power ends.
Embodiment sun-generated electric power voltage 60V, bridge-type oscillator electric current 1.2A, frequency 56KHZ, output dc voltage 12V, electric current 5A, available power 60W, efficient 85%, the oscillating tube radiator temperature is limited in about 40 ℃.Be suitable for driving large-power light-emitting diodes led array lamp or drive other dc electric apparatus.
Claims (3)
1. sun-generated electric power bridge-type oscillating electron 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 bridge-type oscillator; high-power MOS field effect transistor full-wave rectifying circuit and overload detection protective circuit are formed; bridge-type oscillator is a resonant tank by ferrimagnetism primary inductance shunt capacitance; the resonant tank two ends respectively and connect two high-power oscillating tube collector electrodes of PNP and two high-power oscillating tube collector electrodes of NPN; two high-power oscillating tube emitters of PNP connect the sun-generated electric power positive pole; two high-power oscillating tube grounded emitters of NPN; complementary series feed power supply; fast extensive diode in parallel between four high-power oscillating tube collector electrodes and the emitter; resonant tank two ends cross-couplings also in parallel is to pipe base resistance quiescent biasing and electric capacity positive feedback are constituted bridge-type oscillator; two high-power oscillating tube base stages of NPN also connect control signal mouthpiece collector electrode; mouthpiece base stage and collector electrode connect voltage negative feedback biasing resistor; grounded emitter; the bridge-type oscillator power output inserts high-power MOS field effect transistor full-wave rectifying circuit by ferrimagnetism transformer secondary output inductance; it is output as direct voltage for load; the overload detection protective circuit through magnet ring inductance induced potential diode detection, detects voltage access interface management and control system oscillating tube by load current.
2. sun-generated electric power bridge-type oscillating electron 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 bridge-type oscillating electron 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 |
|---|---|---|---|
| CN2011201106170U CN201976001U (en) | 2011-04-03 | 2011-04-03 | Electronic transformer with solar power supply and bridge type oscillator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201106170U CN201976001U (en) | 2011-04-03 | 2011-04-03 | Electronic transformer with solar power supply and bridge type oscillator |
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| CN201976001U true CN201976001U (en) | 2011-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011201106170U Expired - Fee Related CN201976001U (en) | 2011-04-03 | 2011-04-03 | Electronic transformer with solar power supply and bridge type oscillator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114068162A (en) * | 2021-11-17 | 2022-02-18 | 西安交通大学 | Two-stage pulse transformer cascade type repetition frequency trigger |
-
2011
- 2011-04-03 CN CN2011201106170U patent/CN201976001U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114068162A (en) * | 2021-11-17 | 2022-02-18 | 西安交通大学 | Two-stage pulse transformer cascade type repetition frequency trigger |
| CN114068162B (en) * | 2021-11-17 | 2023-12-19 | 西安交通大学 | Cascade type repetition frequency trigger of two-stage pulse transformer |
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| 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 |