CN205051598U - Inverter power supply - Google Patents
Inverter power supply Download PDFInfo
- Publication number
- CN205051598U CN205051598U CN201520789826.0U CN201520789826U CN205051598U CN 205051598 U CN205051598 U CN 205051598U CN 201520789826 U CN201520789826 U CN 201520789826U CN 205051598 U CN205051598 U CN 205051598U
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- inverter
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Abstract
The utility model discloses an inverter power supply can convert 24VDC into 220VAC400W. Inverter power supply includes preceding stage direct current boost circuit and back level DSP inverter circuit, preceding stage direct current boost circuit constitutes as follows: wave filter I, recommend positive violent change parallel operation, current -voltage sample thief, PI regulator, output pulse regulator, input power, direct current 360V and wave filter II, the input power is through wave filter I and recommend positive violent change parallel operation and link to each other, and the product adopts the box -shaped structure, and the wiring of being convenient for, installation are exchanged and the maintenance, can stable work under - 25 DEG C ~70 DEG C conditions. Overvoltage protection, overcurrent protection can be realized to the product to can be under -voltage to inputing through the pilot lamp, excessive pressure, normal, export under -voltage, excessive pressure, overflow, the normal clear shows in real time. Overall structure is compact, and developments are good with the static properties. Wide application range and good market prospects.
Description
Technical field
The utility model relates to structural design and the applied technical field of power supply, specifically provides a kind of inverter.
Background technology
The common forward converter of the many employings of existing direct current boosting power and anti exciting converter, the former has higher requirements at the consistency of switch tube, and the latter cannot be used in large power, electrically product-derived.
People urgently wish to obtain the excellent inverter of a kind of technique effect.
Utility model content
Order of the present utility model is to provide a kind of inverter.
Described inverter comprises prime DC voltage booster circuit and rear class DSP inverter circuit, and described prime DC voltage booster circuit is constructed as follows: filter I1, Push-pull Forward Converter 2, current-voltage sampling device 3, pi regulator 4, output impulse regulator 5, input power 6, direct current 360V7 and filter II8; Input power 6 after filtering device I1 is connected with Push-pull Forward Converter 2, and Push-pull Forward Converter 2 after filtering device II8 is connected with direct current 360V7; Current/voltage collection is carried out by current-voltage sampling device 3 at direct current 360V7 place, signal after gathering is delivered to pi regulator 4, pi regulator 4 is connected with output impulse regulator 5, export the switching tube turn-off time that impulse regulator 5 controls Push-pull Forward Converter 2, stable DC 360V7 output voltage is at direct current 360V; Described rear class DSP inverter circuit comprises direct current 360V7, DSP and controls output pwm signal 9, driver 10, full-bridge inverter 11, electric current and voltage Hall collector 12, filter III 13, output AC electricity 14; Direct current 360V7 is connected with output AC electricity 14 with filter III 13 through full-bridge inverter 11, gather current and voltage signals at output AC electricity 14 places by electric current and voltage Hall collector 12 and be transported to DSP control output pwm signal 9, the pwm signal output drive signal after driver 10 exported, control the turn-off time of IGBT in full-bridge inverter 11, by output voltage stabilization at alternating current 220V.
Electric current and voltage Hall collector 12 core is voltage Hall and current Hall, gathers output voltage and current signal, converts the analog signal that DSP can accept to.The sampling of voltage Hall is reduced in proportion by high-tension electricity and the process gathered.For making transducer reach optimum precision, design input current is 10mA, should select R50=311/10=30K Ω.Output resistance R55 value is maximum gets 300 Ω, input and output current ratio 1:2.5, M point voltage U=10mA × 2.5 × 300=7.5V amplitude.
Prime DC voltage booster circuit described in the utility model adopts Push-pull Forward Converter, adds clamping capacitance, reduces the pulsation of input current, thus can reduce volume and the weight of DC/DC converter input filter, simplify design; Effectively can suppress the magnetic bias unshakable in one's determination of transformer; When switching tube turns off, for the leakage inductance energy of transformer provides Releasing loop, inhibit the shutoff voltage spike at switching tube two ends.Rear class DSP inverter circuit adopts full-bridge inverter structure.
Described inverter, can be used for needing in the electronic equipment of DC24V-AC220V Power convert, by the operating state of LED light display product.Product adopt box structure, be convenient to wiring, install exchange and maintenance, can under-25 DEG C ~ 70 DEG C conditions steady operation.Product can realize overvoltage protection, overcurrent protection, and by indicator light to input undervoltage, overvoltage, normal, exports under-voltage, overvoltage, overcurrent, normally shows in real time.Compact overall structure, the dynamic and stalic state is functional.Applied range, market prospects are good.There is comparatively huge economic worth and social value.
Accompanying drawing explanation
Fig. 1 is inverter schematic diagram.
Embodiment
Embodiment 1
Described inverter comprises prime DC voltage booster circuit and rear class DSP inverter circuit, and described prime DC voltage booster circuit is constructed as follows: filter I1, Push-pull Forward Converter 2, current-voltage sampling device 3, pi regulator 4, output impulse regulator 5, input power 6, direct current 360V7 and filter II8; Input power 6 after filtering device I1 is connected with Push-pull Forward Converter 2, and Push-pull Forward Converter 2 after filtering device II8 is connected with direct current 360V7; Current/voltage collection is carried out by current-voltage sampling device 3 at direct current 360V7 place, signal after gathering is delivered to pi regulator 4, pi regulator 4 is connected with output impulse regulator 5, export the switching tube turn-off time that impulse regulator 5 controls Push-pull Forward Converter 2, stable DC 360V7 output voltage is at direct current 360V; Described rear class DSP inverter circuit comprises direct current 360V7, DSP and controls output pwm signal 9, driver 10, full-bridge inverter 11, electric current and voltage Hall collector 12, filter III 13, output AC electricity 14; Direct current 360V7 is connected with output AC electricity 14 with filter III 13 through full-bridge inverter 11, gather current and voltage signals at output AC electricity 14 places by electric current and voltage Hall collector 12 and be transported to DSP control output pwm signal 9, the pwm signal output drive signal after driver 10 exported, control the turn-off time of IGBT in full-bridge inverter 11, by output voltage stabilization at alternating current 220V.
Electric current and voltage Hall collector 12 core is voltage Hall and current Hall, gathers output voltage and current signal, converts the analog signal that DSP can accept to.The sampling of voltage Hall is reduced in proportion by high-tension electricity and the process gathered.For making transducer reach optimum precision, design input current is 10mA, should select R50=311/10=30k Ω.Output resistance R55 value is maximum gets 300 Ω, input and output current ratio 1:2.5, M point voltage U=10mA × 2.5 × 300=7.5V amplitude.
Prime DC voltage booster circuit described in the utility model adopts Push-pull Forward Converter, adds clamping capacitance, reduces the pulsation of input current, thus can reduce volume and the weight of DC/DC converter input filter, simplify design; Effectively can suppress the magnetic bias unshakable in one's determination of transformer; When switching tube turns off, for the leakage inductance energy of transformer provides Releasing loop, inhibit the shutoff voltage spike at switching tube two ends.Rear class DSP inverter circuit adopts full-bridge inverter structure.
Described inverter, can be used for needing in the electronic equipment of DC24V-AC220V Power convert, by the operating state of LED light display product.Product adopt box structure, be convenient to wiring, install exchange and maintenance, can under-25 DEG C ~ 70 DEG C conditions steady operation.Product can realize overvoltage protection, overcurrent protection, and by indicator light to input undervoltage, overvoltage, normal, exports under-voltage, overvoltage, overcurrent, normally shows in real time.Compact overall structure, the dynamic and stalic state is functional.Applied range, market prospects are good.There is comparatively huge economic worth and social value.
Claims (1)
1. an inverter, it is characterized in that: described inverter comprises prime DC voltage booster circuit and rear class DSP inverter circuit, described prime DC voltage booster circuit is constructed as follows: filter I (1), Push-pull Forward Converter (2), current-voltage sampling device (3), pi regulator (4), output impulse regulator (5), input power (6), direct current 360V (7) and filter II (8); Input power (6) after filtering device I (1) is connected with Push-pull Forward Converter (2), and Push-pull Forward Converter (2) after filtering device II (8) is connected with direct current 360V (7); Current/voltage collection is carried out by current-voltage sampling device (3) at direct current 360V (7) place, signal after gathering is delivered to pi regulator (4), pi regulator (4) is connected with output impulse regulator (5), export the switching tube turn-off time that impulse regulator (5) controls Push-pull Forward Converter (2), stable DC 360V (7) output voltage is at direct current 360V; Described rear class DSP inverter circuit comprises direct current 360V (7), DSP and controls output pwm signal (9), driver (10), full-bridge inverter (11), electric current and voltage Hall collector (12), filter III (13), output AC electricity (14); Direct current 360V (7) is connected with output AC electricity (14) with filter III (13) through full-bridge inverter (11), gather current and voltage signals at output AC electricity (14) place by electric current and voltage Hall collector (12) and be transported to DSP control output pwm signal (9), the pwm signal output drive signal after driver (10) exported, control the turn-off time of IGBT in full-bridge inverter (11), by output voltage stabilization at alternating current 220V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520789826.0U CN205051598U (en) | 2015-10-10 | 2015-10-10 | Inverter power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520789826.0U CN205051598U (en) | 2015-10-10 | 2015-10-10 | Inverter power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205051598U true CN205051598U (en) | 2016-02-24 |
Family
ID=55345140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520789826.0U Expired - Fee Related CN205051598U (en) | 2015-10-10 | 2015-10-10 | Inverter power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205051598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571749A (en) * | 2015-10-10 | 2017-04-19 | 沈阳兴华航空电器有限责任公司 | Inverter power supply |
-
2015
- 2015-10-10 CN CN201520789826.0U patent/CN205051598U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571749A (en) * | 2015-10-10 | 2017-04-19 | 沈阳兴华航空电器有限责任公司 | Inverter power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20201010 |