CN2604023Y - Auxiliary power supply for fluorescent lamp electronic converter - Google Patents
Auxiliary power supply for fluorescent lamp electronic converter Download PDFInfo
- Publication number
- CN2604023Y CN2604023Y CN 03215071 CN03215071U CN2604023Y CN 2604023 Y CN2604023 Y CN 2604023Y CN 03215071 CN03215071 CN 03215071 CN 03215071 U CN03215071 U CN 03215071U CN 2604023 Y CN2604023 Y CN 2604023Y
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- diode
- inductance
- power supply
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Abstract
The utility model relates to a fluorescent lamp electronic inverter assistant power comprises a transformer B, a diode D, an inductance L and a capacitance C. The winding B1 of the transformer B is series connected with the return working circuit of the fluorescent lamp, and the winding B2, the diode D, the inductance L, and the capacitance C form the rectifier and filter circuit, while the power is inducted from the positive and negative pole of the capacitance C. The working source of the utility model is imputed from oscillation circuit output from the fluorescent lamb electronic inverter, which has a frequency from 20K-70KHz and voltage pressure from 200V-500V. The utility model takes advantages of simple and reasonable structure, stable and reliable working, and can be extensively used as the power of the preheat circuit of the fluorescent lamb electronic inverter and as a power of the protection circuit in the abnormal state and the power of the circuit with other functions.
Description
Technical field
The utility model relates to a kind of lighting device, a kind of specifically fluorescence lamp electronic inverter accessory power supply.
Background technology
We know that the fluorescence lamp electronic inverter is widely-used, and circuit is comparative maturity also, but quality is very different, and the life-span is different in size.Improving the effective way that its reliability prolongs its life-span is additional design abnormal state protection circuit and filament pre-heating control circuit.And the power supply of these two kinds of circuit generally is the low-voltage DC of 3V-24V.At present, the method that obtains such accessory power supply on the fluorescence lamp electronic inverter mainly contains: obtain from the 220V alternating current by capacitance resistance step-down mode, obtain from the direct current of 220V alternating current after rectification by capacitance resistance step-down mode, the circuit of realizing this several method has following shortcoming: the circuit complexity, components and parts are had relatively high expectations, and cost is higher, is subjected to the influence of AC supply voltage fluctuation bigger, the work less stable is reliable, and load capacity is little.
Summary of the invention
Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of simple structure is provided, and cost is low, and working stability is reliable, and the fluorescent lamp inverter accessory power supply than large load current can be provided.
The technical scheme in the invention for solving the above technical problem is: a kind of fluorescent lamp inverter accessory power supply, form by transformer B, diode D, inductance L, capacitor C, the winding B1 of transformer B is serially connected in the work loop of fluorescent tube, winding B2 and diode D, inductance L, capacitor C are composed in series current rectifying and wave filtering circuit, draw power supply from the positive and negative polarities of capacitor C.
The said transformer B of fluorescence lamp electronic inverter accessory power supply of the present utility model also is provided with winding B3, winding B3 and diode D2, the winding B1 of transformer B is serially connected in the work loop of fluorescent tube, winding B2, B3 and diode D, D2, inductance L, capacitor C are formed current rectifying and wave filtering circuit, winding B2 connects with diode D, winding B3 connects with diode D2, the negative electrode of diode D, D2 is connected in the b point, winding B2, B3 have centre tap a, inductance L is connected with capacitor C, is connected between a, the b, draws power supply from the positive and negative polarities of C.
Fluorescence lamp electronic inverter accessory power supply of the present utility model can also be provided with diode D2, D3, D4, the winding B1 of transformer B is serially connected in the work loop of fluorescent tube, winding B2 and diode D, D2, D3, D4, inductance L, capacitor C are formed bridge rectifier filter circuit, winding B2 connect with the capacitor C output filter circuit of formation rectification of the input filter circuit that constitutes rectification or inductance L of connecting with inductance L is drawn power supply from the positive and negative polarities of C.
The utility model adopts the unique circuit structure, and simple and reasonable against existing technologies, source current is big, and working stability is reliable, and the scope of application is wide.Be desirable abnormal state protection circuit and the power supply of pre-thermal control circuit and the power supply of other functional circuit.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is an electrical block diagram of the present utility model.
Fig. 2 is a kind of electrical block diagram of the present utility model.
Fig. 3 is an another kind of electrical block diagram of the present utility model.
Embodiment
From Fig. 1, Fig. 2, Fig. 3 as can be seen, the utility model circuit mainly is made up of transformer, diode, inductance, electric capacity.Its working power is connected on 1,2 from the oscillating circuit output of fluorescence lamp electronic inverter, and frequency is generally at 20K--70KHz, and voltage is generally at 200V--500V.
Shown in Figure 1 is a kind of electrical block diagram, form by transformer B, diode D, inductance L, capacitor C, the winding B1 of transformer B is serially connected in the work loop of fluorescent tube, winding B2 and diode D, inductance L, capacitor C are composed in series current rectifying and wave filtering circuit, draw power supply from the positive and negative polarities of capacitor C.Operation principle is: connect the power supply of fluorescence lamp electronic inverter, and oscillating circuit output high frequency electric source to 1, on 2, and load lamp works loop works, at this moment B1 has electric current to flow through, and B2 has couple current simultaneously, and voltage produces, through D, can get accessory power supply after the L, C rectifying and wave-filtering.The power supply architecture of this kind structure is simple, and cost is lower, can be used on its less demanding functional circuit.
Shown in Figure 2 is a kind of embodiment electrical block diagram, by transformer B, diode D, D2, inductance L, capacitor C is formed, said transformer B also is provided with winding B3, winding B3 and diode D2, the winding B1 of transformer B are serially connected in the work loop of fluorescent tube, winding B2, B3 and diode D, D2, inductance L, capacitor C is formed current rectifying and wave filtering circuit, winding B2 connects with diode D, and winding B3 connects with diode D2, diode D, the negative electrode of D2 is connected in the b point, winding B2, B3 has centre tap a, inductance L is connected with capacitor C, is connected on a, between the b, draw power supply from the positive and negative polarities of C.Operation principle is: connect the power supply of fluorescence lamp electronic inverter, and oscillating circuit output high frequency electric source to 1, on 2, and load lamp works loop works, at this moment B1 has electric current to flow through, and B2, B3 have couple current simultaneously, and voltage produces, through D, D2 can get accessory power supply after the L, C rectifying and wave-filtering.The supply voltage of this kind structure is stable, and load current is big.
Shown in Figure 3 is another kind of embodiment electrical block diagram, by transformer B, diode D, D2, D3, D4, inductance L, capacitor C are formed, the winding B1 of transformer B is serially connected in the work loop of fluorescent tube, winding B2 and diode D, D2, D3, D4, inductance L, capacitor C are formed bridge rectifier filter circuit, winding B2 connects with L and constitutes the input filter circuit of rectification, or connect with the capacitor C output filter circuit of formation rectification of inductance L, draws power supply from the positive and negative polarities of capacitor C.Operation principle is: the power supply of connecting the fluorescence lamp electronic inverter, oscillating circuit output high frequency electric source to 1, on 2, and load lamp works loop works, at this moment B1 has electric current to flow through, B2 has couple current simultaneously, voltage produces, and can get accessory power supply after D, D2, D3, D4, L, C rectifying and wave-filtering, and the supply voltage of this kind structure is stable, electric current is big, and cost is lower.
Need to prove that capacitor C is optional with electrochemical capacitor or thin-film capacitor according to the different purposes of power supply, thin-film capacitor does not have the branch of both positive and negative polarity.
The utility model is simple and reasonable, and working stability is reliable, can extensively be used as power supply and the power supply of abnormal state protection circuit and the power supply of other functional circuit of the preheat circuit of fluorescence lamp electronic inverter.
Claims (3)
1, a kind of fluorescence lamp electronic inverter accessory power supply, it is characterized in that: form by transformer B, diode D, inductance L, capacitor C, the winding B1 of transformer B is serially connected in the work loop of fluorescent tube, winding B2 and diode D, inductance L, capacitor C are composed in series current rectifying and wave filtering circuit, draw power supply from the positive and negative polarities of capacitor C.
2, fluorescence lamp electronic inverter accessory power supply according to claim 1, it is characterized in that: said transformer B also is provided with winding B3, winding B3 and diode D2, the winding B1 of transformer B is serially connected in the work loop of fluorescent tube, winding B2, B3 and diode D, D2, inductance L, capacitor C are formed current rectifying and wave filtering circuit, winding B2 connects with diode D, winding B3 connects with diode D2, the negative electrode of diode D, D2 is connected in the b point, winding B2, B3 have centre tap a, and inductance L is connected with capacitor C, are connected between a, the b.
3, fluorescence lamp electronic inverter accessory power supply according to claim 1, it is characterized in that: also be provided with diode D2, D3, D4, the winding B1 of transformer B is serially connected in the work loop of fluorescent tube, winding B2 and diode D, D2, D3, D4, inductance L, capacitor C are formed bridge rectifier filter circuit, winding B2 connect with the capacitor C output filter circuit of formation rectification of the input filter circuit of formation rectification or inductance L of connect with inductance L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03215071 CN2604023Y (en) | 2003-02-14 | 2003-02-14 | Auxiliary power supply for fluorescent lamp electronic converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03215071 CN2604023Y (en) | 2003-02-14 | 2003-02-14 | Auxiliary power supply for fluorescent lamp electronic converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2604023Y true CN2604023Y (en) | 2004-02-18 |
Family
ID=34159993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03215071 Expired - Fee Related CN2604023Y (en) | 2003-02-14 | 2003-02-14 | Auxiliary power supply for fluorescent lamp electronic converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2604023Y (en) |
-
2003
- 2003-02-14 CN CN 03215071 patent/CN2604023Y/en not_active Expired - Fee Related
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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 |