CN2423678Y - Semiconductor transformer - Google Patents
Semiconductor transformer Download PDFInfo
- Publication number
- CN2423678Y CN2423678Y CN 00217422 CN00217422U CN2423678Y CN 2423678 Y CN2423678 Y CN 2423678Y CN 00217422 CN00217422 CN 00217422 CN 00217422 U CN00217422 U CN 00217422U CN 2423678 Y CN2423678 Y CN 2423678Y
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- CN
- China
- Prior art keywords
- triode
- transformer
- electric capacity
- transformer coil
- resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a semiconductor transformer. An input plug is connected with a bridge rectifier circuit which is composed of diodes, the bridge rectifier circuit is connected in parallel with two capacitors which are connected in series, and partial pressure connecting wires arranged between the two capacitors are connected with transformer coils which are connected with the collecting electrode and the emitting electrode of a triode; the base electrode of the triode forms a starting loop circuit through resistors and the capacitors which are connected with the triode, and then, the triode is switched on; meanwhile, the other triode is switched on by impulse through coils, and the utility model can work through self-oscillation which is generated by such a reciprocating movement. The utility model is suitable for neon lamps, energy-saving lamps, and charging lamps.
Description
The utility model relates to a kind of semiconductor transformer.
Along with the raising of people's living standard, household appliances are more and more, and many household appliances need be equipped with transformer, as rechargeable lamp, mobile phone.But it is big that the shortcoming of traditional transformer is a volume, and from great, result of use is poor, cost cost height.
The purpose of this utility model is the shortcoming at above-mentioned transformer, provides a kind of volume little, in light weight, and cost is low, and charging effect is good, the semiconductor transformer of long service life.
The utility model is to realize above-mentioned purpose by the following technical solutions.Semiconductor transformer is connected the bridge rectifier that is constituted by a diode by power input plug, bridge rectifier two the mutually electric capacity of series connection that are connected in parallel, be provided with the dividing potential drop wiring between two electric capacity and connect transformer coil, transformer coil connects the collector electrode and the emission collection of triode, the base stage of triode is formed a start loop by coupled resistance and electric capacity, turn-on transistor, meanwhile, pulse impels the conducting of another triode by the transformation coil, the triode of former conducting is ended, and so forth, produce self-oscillation.
The utility model compared with prior art has following obvious advantage: 1. conversion efficiency height, oneself power consumption is low, has the power-adjustable input and adjusts overcurrent and short-circuit protection function.2. power supply input and output gap insulation have characteristics safe, energy-conservation, long service life.3. adopt discrete component to install, easy to maintenance.4. volume is little, and is in light weight, and cost performance is good.Be applicable to the transformer of electricity-saving lamp, rechargeable lamp and neon light.
The utility model will be further described below in conjunction with drawings and Examples.
Accompanying drawing is circuit theory diagrams of the present utility model.
As shown in the figure, power input plug 1 connects the bridge rectifier 2 that is constituted by a diode, the electric capacity 20 of series connection mutually in bridge rectifier 2 parallel connections, 19, be provided with wiring between the electric capacity 20 and 19 and connect transformer coil 6, transformer coil 6 connects the collector electrode of triode 17, the emitter of triode 17 connects power cathode by resistance 16, the base stage of triode 17 is by electric capacity 3, resistance 4, resistance 12, electric capacity 14, the triggering starting circuit that transformer coil 13 is formed, make triode 17 conductings, the capacitor 19 that has charged is by transformer coil 6, triode 17, resistance 16 conductings discharge.Electric capacity 20 chargings, at the same time, flow through the electric current of transformer coil 6, in transformer coil 7, induce electromotive force, cause triode 5 beginning conductings because transformer coil 7 is opposite with the induced potential of triode 5 base stages and triode 17 base stages with transformer coil 13, cause and quickened triode 17 by with the conducting of triode 5, electric capacity 20 is by triode 5, resistance 18 discharges of transformer coil 6 and conducting, electric capacity 19 chargings simultaneously.Because the interaction of transformation coil 7 and 13 causes triode 17 conductings again.And so forth, above-mentioned circuit produces self-oscillation and works.Diode 15 is provided with for protection triode 17.Transformer coil 8 is the output services winding, connects output connection 21, is provided with rectifier diode 10 between the output connection 21, is output as pulsating direct current.Resistance 9 and light-emitting diode 11 composition work indication loop, resistance 9 effects are the working points of adjusting light-emitting diode 11.
The number of turn that changes transformer coil 8 can be made the charger of different voltage requests.
Change the number of turn of transformer coil 8, cancellation diode 10 is adjusted resistance 9, and this line can be applicable to neon light, electricity-saving lamp.
The utility model is applicable to rechargeable lamp, electricity-saving lamp, neon light.
Claims (2)
1. semiconductor transformer, form by power input plug (1) and coupled output connection (21), it is characterized in that described power input plug (1) connects the bridge rectifier (2) that is constituted by a diode, bridge rectifier (2) in parallel electric capacity (20), (19) of series connection mutually, be provided with wiring between electric capacity (20) and the electric capacity (19) and connect transformer coil (6), transformer coil (6) connects the collector electrode of triode (17), and the emitter of triode (17) connects power cathode by resistance (16); The base stage of triode (17) is by electric capacity (3), resistance (4), resistance (12).The triggering starting circuit that electric capacity (14), transformer coil (13) are formed, the transformer coil (7) that links to each other with transformer coil (6) also is connected triode (5), and the collector electrode of triode (5) connects positive source; The emitter of triode (5) also joins by the collector electrode of resistance (18) with triode (17), forms self-excited oscillator; Transformer coil (8) is the output services winding, connects output connection (21), is provided with rectifier diode (10) between the output connection (21).
2. semiconductor transformer according to claim 1 is characterized in that also being provided with between the described output connection (21) resistance (9) and light-emitting diode (11) composition work indication loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00217422 CN2423678Y (en) | 2000-04-26 | 2000-04-26 | Semiconductor transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00217422 CN2423678Y (en) | 2000-04-26 | 2000-04-26 | Semiconductor transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2423678Y true CN2423678Y (en) | 2001-03-14 |
Family
ID=33582971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00217422 Expired - Fee Related CN2423678Y (en) | 2000-04-26 | 2000-04-26 | Semiconductor transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2423678Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008009196A1 (en) * | 2006-07-11 | 2008-01-24 | ZHANG, Jiaoru | A passive signal isolator with zero offset operation |
-
2000
- 2000-04-26 CN CN 00217422 patent/CN2423678Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008009196A1 (en) * | 2006-07-11 | 2008-01-24 | ZHANG, Jiaoru | A passive signal isolator with zero offset operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |