CN201976004U - Eight-bridge oscillation electronic transformer for solar energy power supply - Google Patents
Eight-bridge oscillation electronic transformer for solar energy power supply Download PDFInfo
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- CN201976004U CN201976004U CN2011201106749U CN201120110674U CN201976004U CN 201976004 U CN201976004 U CN 201976004U CN 2011201106749 U CN2011201106749 U CN 2011201106749U CN 201120110674 U CN201120110674 U CN 201120110674U CN 201976004 U CN201976004 U CN 201976004U
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Abstract
The utility model relates to the field of electronic technique, in particular to an eight-bridge oscillation electronic transformer for a solar energy power supply. The eight-bridge oscillation electronic transformer for a solar energy power supply comprises a solar energy power supply and an inverter, wherein the solar energy power supply comprises a solar energy cell array, an overvoltage detection controller, an undervoltage detection controller, a voltage adapter and a storage cell; the inverter comprises an eight-bridge oscillator, an addition coupler, a large-power metal oxide semiconductor (MOS) field-effect tube full-wave rectification and overload detection protecting circuit; and eight-bridge oscillation power is synthesized and connected to the large-power MOS field-effect tube full-wave rectification to provide load for direct-current voltage. The eight-bridge oscillation electronic transformer has peculiar and efficient circuit, can be widely applied to large-power DC-DC conversion in occasions which are not provided with alternating current mains supply or are inconvenient to supply power, such as automobiles, trains and ships, and is especially suitable for driving light emitting diode (LED) array light for illumination, landscape and advertisements or driving other direct current electrical appliances.
Description
Technical field
The utility model relates to electronic technology field, specifically is a kind of sun-generated electric power eight bridge oscillating electron transformers.
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, and 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 eight bridge oscillating electron transformers 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 eight full-bridge oscillators, seven addition couplers, high-power MOS field effect transistor full-wave rectifying circuit and overload detection protective circuit are formed, seven addition couplers are divided into the first addition coupler, the second addition coupler, third phase adds coupler, the 4th addition coupler, the 5th addition coupler, the 6th addition coupler, the 7th addition coupler, eight full-bridge oscillators are divided into full-bridge oscillator 5a, full-bridge oscillator 5b, full-bridge oscillator 5c, full-bridge oscillator 5d, full-bridge oscillator 5e, full-bridge oscillator 5f and full-bridge oscillator 5g, full-bridge oscillator 5h, respectively by eight ferrimagnetism transformer T1, T2, T3, T4 and T5, T6, T7, T8 primary inductance shunt capacitance is a resonant tank, 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 recovery 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 the full-bridge oscillator, two high-power oscillating tube base stages of NPN also connect control signal mouthpiece collector electrode, the mouthpiece base stage, collector electrode connects voltage negative feedback biasing resistor, grounded emitter, full-bridge oscillator 5a and full-bridge oscillator 5b power output are by ferrimagnetism transformer T1, the anti-phase access first addition coupler primary inductance single order power of T2 secondary inductance is synthetic, full-bridge oscillator 5c and full-bridge oscillator 5d power output are by ferrimagnetism transformer T3, the anti-phase access second addition coupler primary inductance single order power of T4 secondary inductance is synthetic, full-bridge oscillator 5e and full-bridge oscillator 5f power output are by ferrimagnetism transformer T5, it is synthetic that the anti-phase access third phase of T6 secondary inductance adds coupler primary inductance single order power, full-bridge oscillator 5g and full-bridge oscillator 5h power output are by ferrimagnetism transformer T7, anti-phase access the 4th addition coupler primary inductance single order power of T8 secondary inductance is synthetic, anti-phase access the 5th addition coupler primary inductance second order power of the first addition coupler and the second addition coupler secondary inductance is synthetic, third phase adds coupler and anti-phase access the 6th addition coupler primary inductance second order power of the 4th addition coupler secondary inductance is synthetic, anti-phase access the 7th addition coupler primary inductance of the 5th addition coupler and the 6th addition coupler secondary inductance three rank power are synthetic, secondary inductance inserts high-power MOS field effect transistor full-wave rectifying circuit, output dc voltage is 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 the 7th addition coupler secondary inductance respectively, the 7th addition coupler 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 the 7th addition coupler secondary 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 eight bridges, the three rank power that vibrate of powering are synthetic, the output of eight bridge hunting power synthesizing efficients, it is very strong to vibrate, the complementary series feed power supply of oscillating circuit, the high electric current of supply voltage is little, significantly reduces power consumption and increases power output.Not only efficient, opposite three rank of collector current phase place and high-order odd harmonic are zero, and even-order harmonic is cancelled out each other, the output pure sine wave.The full-wave rectification of high-power MOS field effect transistor is without electrochemical capacitor filtering, and the internal resistance low-response is fast, and overload capacity is strong.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 full-bridge pierce circuit.
Synthetic and the overload detection protective circuit of Fig. 3 eight bridge hunting powers.
Fig. 4 high-power MOS field effect transistor full-wave rectifying circuit.
Overvoltage of Fig. 5 sun-generated electric power and under-voltage detection controller circuitry.
Embodiment
With reference to Fig. 1; 2; 3 and Fig. 5 (Fig. 2 is an example with full-bridge oscillator 5a circuit; all the other full-bridge pierce circuits are identical); 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 E1 forms; comprise that also inverter is by eight full-bridge oscillators 5; seven addition couplers 4; high-power MOS field effect transistor full-wave rectifying circuit 3 and overload detection protective circuit 2 are formed; seven addition couplers 4 are divided into the first addition coupler 4a; the second addition coupler 4b; third phase adds coupler 4c; the 4th addition coupler 4d; the 5th addition coupler 4e; the 6th addition coupler 4f; the 7th addition coupler 4g; eight full-bridge oscillators 5 are divided into full-bridge oscillator 5a; full-bridge oscillator 5b; full-bridge oscillator 5c; full-bridge oscillator 5d; full-bridge oscillator 5e; full-bridge oscillator 5f and full-bridge oscillator 5g; full-bridge oscillator 5h; respectively by eight ferrimagnetism transformer T1; T2; T3; T4 and T5; T6; T7; T8 primary inductance L1 shunt capacitance C0 is a resonant tank; 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 recovery 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 the full-bridge oscillator; two high-power oscillating tube Q3 of NPN; the Q4 base stage also meets control signal mouthpiece Q5; the Q6 collector electrode; Q5; the Q6 base stage; collector electrode meets voltage negative feedback biasing resistor R5; R6; grounded emitter; full-bridge oscillator 5a and full-bridge oscillator 5b power output are by ferrimagnetism transformer T1; the anti-phase access first addition coupler 4a primary inductance single order power of T2 secondary inductance is synthetic; full-bridge oscillator 5c and full-bridge oscillator 5d power output are by ferrimagnetism transformer T3; the anti-phase access second addition coupler 4b primary inductance single order power of T4 secondary inductance is synthetic; full-bridge oscillator 5e and full-bridge oscillator 5f power output are by ferrimagnetism transformer T5; it is synthetic that the anti-phase access third phase of T6 secondary inductance adds coupler 4c primary inductance single order power; full-bridge oscillator 5g and full-bridge oscillator 5h power output are by ferrimagnetism transformer T7; anti-phase access the 4th addition coupler 4d primary inductance single order power of T8 secondary inductance is synthetic; anti-phase access the 5th addition coupler 4e primary inductance second order power of the first addition coupler 4a and the second addition coupler 4b secondary inductance is synthetic; third phase adds coupler 4c and anti-phase access the 6th addition coupler 4f primary inductance second order power of the 4th addition coupler 4d secondary inductance is synthetic; anti-phase access the 7th addition coupler 4g primary inductance of the 5th addition coupler 4e and the 6th addition coupler 4f secondary inductance three rank power are synthetic; secondary inductance inserts high-power MOS field effect transistor full-wave rectifying circuit 3, and the rectification output dc voltage is for load.
Overload detection protective circuit 2 through the 3 induced potential diode VD5 detections of magnet ring inductance L, detects voltage through filter capacitor C5, resistance R 16 and current-limiting resistance R7, R8 access interface pipe Q5, Q6 control oscillating tube Q3, Q4 and Q1, Q2 by the lamp load electric current.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.Fast recovery diode VD1, VD2 and VD3, VD4 prevent that high back-pressure from puncturing oscillating tube.
The full-bridge oscillator is by PNP, the push-pull oscillator of two symmetrical capacitance-resistance cross-couplings of complementation of NPN triode intercouples and forms, 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 is 90 degree alternations, output current is half cosine wave pulse, it is very strong to vibrate, 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, be output as pure sine wave, not only efficient, complementary series feed power supply, the high electric current of supply voltage is little, reduces power consumption and increases power output.
When general large power triode constitutes the full-bridge vibration and requires high-power output, as mate the 400W load, only several the direct parallel operations of device can not be satisfactory, adopt eight bridge hunting power synthetic effects obvious, its power output stack can be satisfied specification requirement, and is respectively that the mutual anti-phase exciting power of eight bridges vibration power output is synthetic by seven addition couplers.When balance resistance R9, R10, R11, R12, R13 and R14, R15 equate at two synthetic electric currents of power, no power waste.
Fig. 4, high-power MOS field effect transistor full-wave rectifying circuit is by two high-power MOS field effect transistor Q7, the Q8 full-wave rectification, source electrode inserts the two ends of the 7th addition coupler 4g secondary inductance respectively, its inductance centre cap ground connection, grid is through switching diode VD6, VD7 parallel resistance R18, the R20 intersection inserts the two ends of addition coupler 4g secondary inductance, and with resistance R 17, R19 provides gate bias, switching diode VD6, VD7 makes grid quicken upset, drain electrode also is connected into full-wave rectification output dc voltage supply load RL, rectification circuit is without electrochemical capacitor filtering, the internal resistance low-response is fast, and overload capacity is strong.This electronic transformer output dc voltage, power are determined by the vibration of eight bridges and primary and secondary inductance ratio of addition coupler and supply voltage electric current.
Fig. 5; overvoltage detects controller 1b when storage battery E voltage is higher than voltage stabilizing didoe VD10 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 VD10 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 VD12 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 VD12 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 21, R22, R23 and R26, R27, R28 and potentiometer RP1, RP2 dividing potential drop insert operational amplifier homophase and inverting input respectively.Adjust operational amplifier voltage negative feedback resistance R24, R29 and potentiometer RP1, RP2 and reach the handoff threshold value.Resistance R 25, R30 play metering function.
Diode VD8 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 VD9 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 VD11, VD13 absorb relay J 1, J2 coil reverse potential, and protection punctures triode Q9, Q10.Voltage adapter 1d connects eight bridge oscillators, 5 power ends.
Embodiment sun-generated electric power voltage 63V, eight bridge oscillator operating current 8A, frequency of oscillation 47KHZ, output dc voltage 24V electric current 18A, available power 430W, inversion efficiency 86%, the temperature rise of oscillating tube radiator is lower than 30 ℃.
Claims (3)
1. sun-generated electric power eight bridge oscillating electron transformers; 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; it is characterized in that: also comprise eight full-bridge oscillators of inverter; seven addition couplers; high-power MOS field effect transistor full-wave rectifying circuit and overload detection protective circuit are formed; seven addition couplers are divided into the first addition coupler; the second addition coupler; third phase adds coupler; the 4th addition coupler; the 5th addition coupler; the 6th addition coupler; the 7th addition coupler; eight full-bridge oscillators are divided into full-bridge oscillator (5a); full-bridge oscillator (5b); full-bridge oscillator (5c); full-bridge oscillator (5d) and full-bridge oscillator (5e); full-bridge oscillator (5f); full-bridge oscillator (5g); full-bridge oscillator (5h); respectively by eight ferrimagnetism transformers (T1); (T2); (T3); (T4) and (T5); (T6); (T7); (T8) the primary inductance shunt capacitance is a resonant tank; 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 the full-bridge oscillator; two high-power oscillating tube base stages of NPN also connect control signal mouthpiece collector electrode; the mouthpiece base stage; collector electrode connects voltage negative feedback biasing resistor; grounded emitter; full-bridge oscillator (5a) and full-bridge oscillator (5b) power output are by ferrimagnetism transformer (T1); (T2) the anti-phase access first addition coupler primary inductance single order power of secondary inductance is synthetic; full-bridge oscillator (5c) and full-bridge oscillator (5d) power output are by ferrimagnetism transformer (T3); (T4) the anti-phase access second addition coupler primary inductance single order power of secondary inductance is synthetic; full-bridge oscillator (5e) and full-bridge oscillator (5f) power output are by ferrimagnetism transformer (T5); (T6) it is synthetic that the anti-phase access third phase of secondary inductance adds coupler primary inductance single order power; full-bridge oscillator (5g) and full-bridge oscillator (5h) power output are by ferrimagnetism transformer (T7); (T8) anti-phase access the 4th addition coupler primary inductance single order power of secondary inductance is synthetic; anti-phase access the 5th addition coupler primary inductance second order power of the first addition coupler and the second addition coupler secondary inductance is synthetic; third phase adds coupler and anti-phase access the 6th addition coupler primary inductance second order power of the 4th addition coupler secondary inductance is synthetic; anti-phase access the 7th addition coupler primary inductance of the 5th addition coupler and the 6th addition coupler secondary inductance three rank power are synthetic; secondary inductance inserts high-power MOS field effect transistor full-wave rectifying circuit; the rectification output dc voltage is 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 eight bridge oscillating electron transformers 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 the 7th addition coupler secondary inductance respectively, the 7th addition coupler 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 the 7th addition coupler secondary inductance, and two pipe drain electrodes also are connected into the full-wave rectification output dc voltage for load.
3. sun-generated electric power eight bridge oscillating electron transformers 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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201106749U CN201976004U (en) | 2011-04-03 | 2011-04-03 | Eight-bridge oscillation electronic transformer for solar energy power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201106749U CN201976004U (en) | 2011-04-03 | 2011-04-03 | Eight-bridge oscillation electronic transformer for solar energy power supply |
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| CN201976004U true CN201976004U (en) | 2011-09-14 |
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| CN2011201106749U Expired - Fee Related CN201976004U (en) | 2011-04-03 | 2011-04-03 | Eight-bridge oscillation electronic transformer for solar energy power supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104105306A (en) * | 2013-04-15 | 2014-10-15 | 阮树成 | Solar power supply four-full-bridge injection-locking power synthesis low-voltage sodium lamp group |
-
2011
- 2011-04-03 CN CN2011201106749U patent/CN201976004U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104105306A (en) * | 2013-04-15 | 2014-10-15 | 阮树成 | Solar power supply four-full-bridge injection-locking power synthesis low-voltage sodium lamp group |
| CN104105306B (en) * | 2013-04-15 | 2016-08-03 | 阮树成 | Sun-generated electric power four full-bridge note lock power combing low-pressure sodium lamp group |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20130403 |