CN2051800U - High efficiency power source inverter - Google Patents
High efficiency power source inverter Download PDFInfo
- Publication number
- CN2051800U CN2051800U CN 89212471 CN89212471U CN2051800U CN 2051800 U CN2051800 U CN 2051800U CN 89212471 CN89212471 CN 89212471 CN 89212471 U CN89212471 U CN 89212471U CN 2051800 U CN2051800 U CN 2051800U
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- output
- inverter
- transformer
- secondary coils
- high efficiency
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Abstract
The utility model relates to a high efficiency power source inverter, comprising a feedback transformer, an output circuit, two secondary coils, a triode with push-pull modulation, and two base circuits, wherein, the primary pole of the feedback transformer is connected in series with the output circuit; the two secondary coils are respectively connected in series with the two base circuits of the triode with push-pull modulation, and the connections between the two secondary coils and the base circuits are forward connections. So electric currents which are pulled by bases are increased or reduced with the increase and the decrease of load, the efficiency of an inverter is improved form seventy percent to eighty percent, and the utility model is a high efficiency inverter.
Description
The utility model relates to a kind of power inverter, is used for DC power supply is modulated to AC power.
The power inverter of prior art is recommended modulation triode, output transformer, diode, resistance and other auxiliary elements by two and is formed, and two direct-flow input ends, two ac output ends are arranged.Two base loops and the output loop of recommending the modulation triode all do not have direct electrical connection, its base stage promotes the influence that electric current is not subjected to output current, can consume when zero load or underloading like this with the base stage of full load as much and promote power supply, thereby its efficient is lower, this is its shortcoming.
Task of the present utility model provides a kind of like this power inverter, and its base stage promotion power supply changes with the variation of load current, minimum when unloaded, thereby can when unloaded and underloading, reduce consume, its efficient is higher.
Task of the present utility model realizes with following mode, in inverter circuit, increase a feedback transformer, the primary coil of this transformer is serially connected with the ac output end of inverter, its two groups of secondary coils then are series at two respectively and recommend in two base loops modulating triode, become forward to be connected with the base stage of two triodes.
Feedback transformer becomes a reactor when load open circuit like this, base stage promotes electrorheological and gets minimum, the complete machine consume will diminish, after load inserts, because of the feedback transformer primary coil is connected in series into output loop, thereby there is electric current to flow through, two secondary coil just induces certain voltage, dimension level coil is serially connected with two respectively and recommends the base loop of modulation triode and become forward to be connected with two base stages, thereby base current will increase and decrease with the increase and decrease of load current and keep certain ratio with the collector electrode output current, improve the efficient of inverter.
The utility model will be further described below in conjunction with accompanying drawing:
Fig. 1 is a prior art power inverter circuit schematic diagram;
Fig. 2 is the utility model electrical schematic diagram.
Referring to Fig. 1, the prior art power inverter is by recommending modulation triode (1), (2); Output transformer (3), diode (4), (5) and resistance (6) are formed, and two direct-flow input ends (C), (D) and two ac output ends (A), (B) are arranged.There are two groups of secondary coils (11), (12) to be serially connected with respectively in the base loop of two modulation triodes (1), (2) in the output transformer (3).
Referring to Fig. 2, the utility model has a feedback transformer (7), the primary coil (8) of feedback transformer (7) is connected with the output winding (13) of output transformer (3), be serially connected with in the output loop, two groups of secondary coils (9) of feedback transformer (7), (10) are serially connected with respectively in the base loop of recommending modulation triode (1), (2), become forward to be connected with the base stage of triode (1), (2).
Like this, when output loop opens circuit, feedback transformer (7) becomes a reactor, make the base current of triode (1), (2) minimum, the complete machine consume is very little, when output loop inserts load, there is electric current to flow through in the primary coil (8) of feedback transformer (7), in its secondary coil (9), (10) induced voltage is arranged just, because of coil (9), (10) become forward to be connected with the base stage of two triodes (1), (2), thereby its base current increase, strengthened the promotion electric current, make the inverter operate as normal.
Electric current increases and decreases with output current the utility model and the ratio certain with the collector current maintenance because base stage promotes, so its efficient is higher, actual measurement is 70～80%, and than efficient 60～70% raisings about 10% of prior art inversion depressor, this is its advantage.
The utility model is applicable to that frequent power failure or areas without electricity are modulated to the 220V AC power with the dc source of battery and use.
Claims (1)
1, a kind of power inverter, recommending modulation triode (1), (2), output transformer (3), diode (4), (5) and resistance (6) by two forms, two direct-flow input ends (C), (D) and two ac output ends (A), (B) are arranged, it is characterized in that: a feedback transformer (7) is arranged, and this transformer has one group of primary coil (8) and two groups of secondary coils (9), (10); Primary coil (8) is connected with the output winding (13) of output transformer (3), is serially connected with output loop; The base loop school window that two groups of secondary coils (9), (10) are serially connected with modulation triode (1), (2) respectively burns mqb seal
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89212471 CN2051800U (en) | 1989-05-09 | 1989-05-09 | High efficiency power source inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89212471 CN2051800U (en) | 1989-05-09 | 1989-05-09 | High efficiency power source inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2051800U true CN2051800U (en) | 1990-01-24 |
Family
ID=4868617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89212471 Withdrawn CN2051800U (en) | 1989-05-09 | 1989-05-09 | High efficiency power source inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2051800U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107717A (en) * | 2011-11-15 | 2013-05-15 | 艾沃特有限公司 | Power supply regulation for ultra-low load and no-load operation |
-
1989
- 1989-05-09 CN CN 89212471 patent/CN2051800U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107717A (en) * | 2011-11-15 | 2013-05-15 | 艾沃特有限公司 | Power supply regulation for ultra-low load and no-load operation |
| US8982584B2 (en) | 2011-11-15 | 2015-03-17 | Dialog Semiconductor Inc. | Power supply regulation for ultra-low load and no-load operation |
| CN103107717B (en) * | 2011-11-15 | 2015-04-29 | 戴乐格半导体公司 | Power supply regulation for ultra-low load and no-load operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |