CN2210508Y - Electric capacity constant current type electronic ballast for light adjusting - Google Patents
Electric capacity constant current type electronic ballast for light adjusting Download PDFInfo
- Publication number
- CN2210508Y CN2210508Y CN 94219331 CN94219331U CN2210508Y CN 2210508 Y CN2210508 Y CN 2210508Y CN 94219331 CN94219331 CN 94219331 CN 94219331 U CN94219331 U CN 94219331U CN 2210508 Y CN2210508 Y CN 2210508Y
- Authority
- CN
- China
- Prior art keywords
- electric capacity
- constant current
- ballast
- electronic ballast
- capacitors
- 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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- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
Abstract
The utility model relates to an electric capacity constant current type electronic ballast for light adjusting for a fluorescent lamp, which is composed of a multi-position switch, capacitors and diodes. After one ends of a plurality of capacitors are connected in parallel, a bridge rectifier circuit is connected with the one ends of the capacitors. Two diodes of the circuit, which are not adjacent are respectively connected with the capacitor with proper capacity in parallel to form two double voltage bridge rectifier circuits, and an ordinary fluorescent lamp switch is changed into a multi-position switch connected with a plurality of capacitors in a position changing way. The ballast can realize the multi-position light adjusting of the ordinary fluorescent lamp, the glow starting and normal work can be realized within the voltage range of 120 to 260V, the momentary voltage of glow starting reaches 1200V, and the energy is saved 25% to 30%. The utility model which has the advantages of reliable performance, simple structure, low cost and long service life of the lamp tube is an ideal replacing product for the present fluorescent lamp ballast.
Description
The present invention relates to a kind of fluorescent lamp electric capacity constant current mode dimmable electronic ballast.
Known daylight ballast for lamp is all inductance type ballast and electronics high frequency ballast.Inductance type ballast is made up of coil, silicon steel sheet, and supply power voltage is lower than the 180V fail to start, and power factor (PF) is low; Electric ballast is made up of elements such as diode, electric capacity, triodes, and is fragile when mains fluctuations are big, the failure rate height, and useful life is short.The two all can not make fluorescent lamp light modulation and cost height
The objective of the invention is to design strong, the energy-conservation adaptation supply voltage of a kind of starter ability wide ranges, prolonging lamp tube service life, the electric ballast of tunable optical.
The present invention has realized starter and the operate as normal of input voltage in 120 to 260V scopes from theory structure, the starter transient voltage reaches 1200V and uses the electric capacity constant-current decompression, high voltage is arranged during build-up of luminance, there is low voltage to keep lamp works behind the build-up of luminance, because of electric capacity loss power not, the energy-conservation 25-30% that reaches; Use multi-position switch and some ends electric capacity in parallel mutually to realize the light modulation of many gears.Stable performance has prolonged lamp tube service life.Simple in structure, with low cost.
The present invention is made up of multi-position switch K, electric capacity K device C1, C2, C3, C4 diode D1, D2, D3, D4, fluorescent tube W, as figure.
Multidigit (mainly being three) K switch one termination energize A, other end displacement connects some (mainly being two) capacitor C1, C2, as figure.
Some (mainly being two) capacitor C 1, C2 other end bridge rectifier one end that is connected in parallel mutually is as figure.
Be connected in parallel respectively capacitor C 3, the C4 of adaptation capacity of two mutual non-conterminous diode D2, D3 or D1, D4 forms two two multiplication of voltage bridge rectifiers in the bridge rectifier, as figure.
Bridge rectifier other end energized B, other two contact points connection fluorescent tube W is as figure.
Accompanying drawing: expression electric capacity constant current mode dimming electronic ballast electronic unit connecting circuit.
A, B-represent to import power supply.
K1, K2-represent multi-position switch.
C1-represents high light step-down Constant Electric Current container.
C2-represents light modulation low light level step-down Constant Electric Current container.
C3, C4-represent to start boost capacitor.
D1, D2, D3, D4-represent rectifier diode.
W-represents fluorescent tube.
Claims (4)
1, a kind of electric capacity constant current mode dimming electronic ballast is characterized in that this ballast is made up of multi-position switch, capacitor, diode.
2, as claim (1), as described in electric capacity constant current mode dimming electronic ballast it is characterized in that multi-position switch one termination power, other end displacement connects some (mainly being two) step-down Constant Electric Current container; Connect a bridge rectifier after some step-down Constant Electric Current container one end parallel connections.
3, be that two mutual non-conterminous diodes are connected in parallel respectively and one start boost capacitor in the bridge rectifier as claim (1) and (2) described electric capacity constant current mode dimming electronic ballast feature.
4, it is characterized in that as electric capacity constant current mode dimming electronic ballast as described in the claim (1) bridge rectifier one end connects with power supply, in addition two contact connection fluorescent-lamp tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94219331 CN2210508Y (en) | 1994-09-01 | 1994-09-01 | Electric capacity constant current type electronic ballast for light adjusting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94219331 CN2210508Y (en) | 1994-09-01 | 1994-09-01 | Electric capacity constant current type electronic ballast for light adjusting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2210508Y true CN2210508Y (en) | 1995-10-18 |
Family
ID=33834226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94219331 Expired - Fee Related CN2210508Y (en) | 1994-09-01 | 1994-09-01 | Electric capacity constant current type electronic ballast for light adjusting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2210508Y (en) |
-
1994
- 1994-09-01 CN CN 94219331 patent/CN2210508Y/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 |