CN2300228Y - Capacitive ballast - Google Patents
Capacitive ballast Download PDFInfo
- Publication number
- CN2300228Y CN2300228Y CN 97210237 CN97210237U CN2300228Y CN 2300228 Y CN2300228 Y CN 2300228Y CN 97210237 CN97210237 CN 97210237 CN 97210237 U CN97210237 U CN 97210237U CN 2300228 Y CN2300228 Y CN 2300228Y
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- China
- Prior art keywords
- circuit
- voltage
- switch
- fluorescent tube
- multiplying
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- Expired - Fee Related
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Abstract
The utility model discloses a capacitive ballast, which is composed of a delay circuit, a voltage doubler circuit, a switching circuit, and PTC elements which are connected in series in an alternating current circuit, wherein, the voltage doubler circuit provides high voltage to ignite lamp tubes, the alternating current circuit is switched within a set time of the delay circuit and under the function of the switching circuit, and the lamp tube is driven to stably operate by industrial frequency alternating current. The voltage doubler circuit automatically quits a work state, and the PTC element automatically regulates the voltage of the working current. The other proposal is that a switching device with delay function is connected in series in the switching circuit, and thereby, the delay circuit is reduced, and the structure is simpler. The utility model can be used for lamp tubes which need high voltage starting, such as fluorescent lamps, neon lamps, internal triggering type high voltage sodium lamps, etc.
Description
The utility model relates to the fluorescent tube ballast that need are lighted with high pressure.It is applicable to fluorescent lamp, internal trigger formula high pressure sodium lamp, neon light etc.
The ballast of prior art mainly contains three kinds, and 1, the inductance type fluorescent lamp ballast, it utilizes inductance type ballast moment to produce the high pressure spot fluorescent lamp.Its weak point is that the inductance line of ballast encloses power consumption 30-40%, and power consumption is high, and (below 200 volts) can't start when line voltage is low.Second kind is electric ballast, and it is to change frequency to produce the high pressure spot fluorescent lamp, and its weak point produces high frequency when being ballast work, causes electric pollution, and harmful.The third is the voltage-multiplying type ballast, generally all adopts two voltage-multiplying circuits, starts required high pressure for fluorescent lamp provides.Its weak point is to be direct current output forever, causes fluorescent tube anode electron accumulation surplus, and anode dark, negative electrode are bright, and lighting illumination intensity is reduced, and shortens fluorescent tube useful life.
The purpose of this utility model is to overcome the prior art weak point, and a kind of energy savings is provided, and unregulated power pollutes, and it is wide to adapt to voltage range, orders about the appearance formula rectifier of lamp works with industrial-frequency alternating current.
The utility model is to utilize voltage-multiplying circuit charging, discharge to set up the required high direct voltage of fluorescent tube and light fluorescent tube, make it enter astable operating state (alternating current-direct current is used with), in the time that delay circuit is set, through the commutation circuit effect, the conducting ac circuit orders about fluorescent tube with industrial-frequency alternating current and enters steady-working state; The voltage-multiplying circuit state of deactivating automatically, commutation circuit one end is connected with voltage-multiplying circuit high direct voltage output plus terminal, the other end with exchange the input anode and be connected; Be in series with the PTC element of the automatic adjusting lamp works current/voltage that mates with fluorescent tube in ac circuit, the PTC element also can be connected with fluorescent tube, is parallel in the ac circuit.
The utility model alternative plan is that the switch that will have delay function is connected in the commutation circuit, and switch plays time-delay and switching effect simultaneously, thereby has reduced delay circuit, and circuit structure is simpler; This scheme also is to charge with voltage-multiplying circuit, discharge is set up the required high direct voltage of fluorescent tube and is lighted fluorescent tube, make it enter astable operating state, the switch effect conducting ac circuit in the regular hour in commutation circuit orders about fluorescent tube with industrial-frequency alternating current and enters steady-working state; The voltage-multiplying circuit state of deactivating automatically is in series with the PTC element with the automatic adjusting lamp works current/voltage of fluorescent tube coupling in ac circuit, the PTC element also can be connected with fluorescent tube, is parallel in the ac circuit.
Fig. 1 is a circuit structure diagram of the present utility model,
Fig. 2 is that the utility model is the circuit structure diagram of switch with the time relay;
Fig. 3 is that the utility model is the circuit structure diagram of switch with the bidirectional triode thyristor element;
Fig. 4 is that the utility model alternative plan is the circuit structure diagram of switch with the subzero temperature thermistor;
Fig. 5 is that the utility model alternative plan is the circuit structure diagram of switch with the regular hand tap.
Below in conjunction with embodiment (accompanying drawing) the utility model is further described.
With reference to shown in Figure 1, of the present utility model by delay circuit, commutation circuit, voltage-multiplying circuit constitutes, commutation circuit one end is connected with voltage-multiplying circuit high direct voltage output plus terminal (A point), and the other end is connected with interchange input anode (B point), and voltage-multiplying circuit is a voltage tripler.Behind power connection, successively to C
4, C
5, C
6Charging, C
6The high direct voltage point fluorescent lamp R that produces during discharge
L, at this moment, fluorescent lamp R
LBe in and give hot astable operating state, in the time of setting, under the delay circuit effect, the normally opened contact J of the common relay in the commutation circuit (switch)
1-3By adhesive, make ac circuit AB conducting, fluorescent lamp enters steady-working state, and delay circuit is in running order all the time, for the common relay in the commutation circuit provides current/voltage, to guarantee normally opened contact J
1-3Be in attracting state.After ac circuit AB conducting, order about fluorescent lamp R with industrial-frequency alternating current
LSteady operation, the voltage-multiplying circuit state of deactivating automatically, output end voltage equals supply voltage, forms the voltage liter.The PTC element that is connected in the ac circuit is regulated fluorescent lamp R automatically
LOperating current voltage, it is not fluctuateed with mains fluctuations, keep the illumination substantially constant.
PTC element and fluorescent tube are complementary.When fluorescent tube is the 40W fluorescent lamp, its technical parameter: normal temperature resistance: 10 Ω; Non-operating current: 400mA; Operating current: 〉=400mA; Proof voltage: 265V (500V); Curie temperature: 120 ℃.
When fluorescent tube was neon light or high pressure sodium lamp, its technical parameter mated according to the lamp works voltage and current.
Voltage-multiplying circuit also will mate with fluorescent tube.When fluorescent tube is neon light, need 700 volts and just can light, can adopt 4 or 5 voltage-multiplying circuits.When fluorescent tube is high pressure sodium lamp, need 500 volts of high pressure just can light, can adopt 4 voltage-multiplying circuits.
With reference to shown in Figure 2, circuit structure is basic identical with Fig. 1, and different is to change the switch in the commutation circuit into the time relay by common relay, PTC element and fluorescent lamp R
LSeries connection is parallel in the ac circuit.
With reference to shown in Figure 3, circuit structure is basic identical with Fig. 1, and different is to change the switch in the commutation circuit into the bidirectional triode thyristor element by common relay.
With reference to shown in Figure 4, the utility model is made of voltage-multiplying circuit and commutation circuit, and commutation circuit one end is connected (A point) with voltage-multiplying circuit high direct voltage output plus terminal, and the other end is connected (B point) with interchange input anode.Voltage-multiplying circuit is a voltage tripler, and RL is complementary with fluorescent lamp, when power connection, and successively to C1, C2, the C3 charging produces high direct voltage point fluorescent lamp RL during the C3 discharge, and fluorescent lamp RL is in and gives hot astable operating state.When the AB conducting, order about fluorescent lamp RL steady operation with industrial-frequency alternating current, the voltage-multiplying circuit state of deactivating automatically, the subzero temperature thermistor plays the effect of time-lag action and switch simultaneously.Automatically the PTC spare of regulating current/voltage and fluorescent lamp coupling is connected in the ac circuit.D4 is a sense of current control element.
With reference to shown in Figure 5, circuit structure and Fig. 4 are basic identical, the switch that different is in the commutation circuit is a regular hand tap, PTC connects with fluorescent lamp RL, be parallel in the ac circuit, using method is to turn on the power switch back 3-5 second, pulling (or lifting) hand switch (switch) again, make the conducting of commutation circuit AB point, order about fluorescent lamp RL steady operation with industrial-frequency alternating current.Switch also can adopt solid state relay (integrated circuit), and it also has time-delay and handoff functionality.
As follows according to experiment the utility model major parameter:
1, the power utilization rate is nearly 100%, supply voltage accommodation 100-300 volt.
2, power factor (PF) ≈ 1.
3, adaptive temperature-10 ℃--50 ℃.
4, start-up time: start-up time 〉=2 second, circuit 2-7 switching time second.
5, lighting illumination intensity is under 100 volts of-300 volts of situations, and the illumination substantially constant is better than GB.
6, useful life: shock resistance, ageing-resistant 〉=10
6Inferior.
7, have overvoltage, overcurrent is protected automatically.
8, waveform: sine wave.
9, adapt to frequency: 50HZ, 60HZ, input and output frequency 50HZ, 60HZ.
10, noiselessness, no stroboscopic, in light weight are esy to use, safe and reliable.
11, be applicable to fluorescent lamp, uses such as internal trigger formula high pressure sodium lamp, neon light.
The utlity model has following advantage as can be seen according to above-mentioned technical parameter and circuit structure: energy-efficient; material-saving; unregulated power pollutes; low frequency is harmless to health; it is wide to adapt to voltage range; overvoltage, under-voltage equal energy operate as normal, and have safe and reliable overvoltage, overcurrent protection, easy to install and use.
Claims (6)
1, a kind of appearance formula ballast, comprise delay circuit, voltage-multiplying circuit, it is characterized in that also comprising a commutation circuit, PTC element with the automatic adjusting operating current voltage of fluorescent tube coupling, commutation circuit one end is connected with voltage-multiplying circuit high direct voltage output plus terminal, and the other end is imported anode and is connected with exchanging, the PTC element connected in series is connected in ac circuit or with fluorescent tube, is parallel in the ac circuit.
2, a kind of appearance formula ballast according to claim 1 is characterized in that voltage-multiplying circuit is the 3-5 multiplication of voltage, selects according to the required high pressure of fluorescent tube.
3, a kind of appearance formula ballast according to claim 1 is characterized in that being in series with in the commutation circuit switch.
4, a kind of appearance formula ballast according to claim 3 is characterized in that switch is common relay or the time relay or bidirectional triode thyristor element.
5, a kind of appearance formula ballast comprises voltage-multiplying circuit, it is characterized in that also comprising a commutation circuit, PTC element with the automatic adjusting operating current voltage of fluorescent tube coupling, switch with delay function is arranged in the commutation circuit, commutation circuit one end is connected with voltage-multiplying circuit high direct voltage output plus terminal, the other end with exchange the input anode be connected, switch is connected in the commutation circuit, the PTC element connected in series is connected in ac circuit or with fluorescent tube, is parallel in the ac circuit.
6, a kind of appearance formula ballast according to claim 5 is characterized in that switch is a subzero temperature thermistor or solid state relay or regular hand tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97210237 CN2300228Y (en) | 1997-05-01 | 1997-05-01 | Capacitive ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97210237 CN2300228Y (en) | 1997-05-01 | 1997-05-01 | Capacitive ballast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2300228Y true CN2300228Y (en) | 1998-12-09 |
Family
ID=33929220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97210237 Expired - Fee Related CN2300228Y (en) | 1997-05-01 | 1997-05-01 | Capacitive ballast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2300228Y (en) |
-
1997
- 1997-05-01 CN CN 97210237 patent/CN2300228Y/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 |