TWI247559B - Electronic starter of fluorescent lamp having the function to adjust the preheating time automatically and to reset the timing quickly - Google Patents

Abstract

The present invention brings up a novel electronic starter of fluorescent lamp having the function to reset the timing quickly with a resistor and a diode, so as to provide the electronic starter for fluorescent lamp in the present invention an instant re-igniting capability. Moreover, the preheating time of lamp is determined in accordance with the lamp voltage magnitude. Consequently, a shorter preheating time occurs at a high voltage and a longer preheating time occurs at a low voltage, so as to normally light up the fluorescent lamp.

Description

1247559 IX. Description of the Invention: [Technical Field] The present invention relates to an electronic starter, and more particularly to a fluorescent lamp electronic starter with a fast timekeeping reset function, which can also be determined according to the voltage of the lamp tube. The preheating time of the lamp has a short preheating at high voltage, and has a long warm-up time at low voltage, so that it can normally illuminate the fluorescent tube. [Prior Art] Since the invention of incandescent lamps in 1879, Edison has completely changed the working schedule of human beings, and effectively extended people's work, entertainment time, and prosperity. However, incandescent lamps have been gradually replaced by Fluorescent Lamps with high luminous efficiency and long life due to their low luminous efficacy and short life. Since the fluorescent lamp has a negative resistance characteristic, a ballast should be added to limit the lamp current and help the lamp to start. With the development of power electronics technology, there are a variety of electronic ballasts, which not only have high luminous efficiency, high power factor, no _, light weight, etc., but also can extend the life of the lamp and The function of dimming [丨—5]. However, electronic stability has not been widely accepted by the market because of its high manufacturing cost and high price. The traditional inductive stabilizer H (or electromagnetic ballast) has the disadvantages of large size, low power, short service life, etc., but its price is very cheap, which is the most common use at present. The traditional inductive ballast consists of a core choke, which must be used with a starter, 1247559 to receive a glory. As shown in the first figure, it is a mounting circuit of a conventional actuator 1 , a fluorescent lamp 2 , an inductive female state 30 and a plug 40. When the power is turned on, the starter 10 is in a short-circuit state. At this time, the filaments at both ends of the fluorescent lamp 2 pass current, and the lamp, the temperature rises and emits electrons, and the purpose of preheating is achieved. After the warm-up procedure is completed, the starter 1 turns into an open circuit. At this time, the ballast senses a high voltage to cause the filament to emit hot electrons, thereby illuminating the fluorescent tube 2〇. After the fluorescent lamp 20 is lit, the starter 1〇 will remain open, and the inductive ballast 30 will act as a steady current. The conventional starter includes a movable electrode and a fixed electrode, and the distance between the two poles is much smaller than the filament distance of the fluorescent tube. Therefore, when the power source is added, the discharge phenomenon first occurs, so that the electrodes generate heat, and the movable electrode is The heat rises and comes into contact with the fixed electrode. Such a conventional starter has the disadvantages of poor startability, difficulty in maintenance, and the like, and at the end of the life of the lamp, it is often damaged by overheating due to excessive surface current. In order to improve the shortcomings of the above conventional starter, there is an electronic starter. For example, the second figure shows a block diagram of a conventional fluorescent lamp electronic starter, which is composed of a rectifying circuit 110, a voltage detecting circuit 12, a preheating timer circuit 14 and a fire circuit 130, and a terminal CN1. Connect to CN2 at both ends of the fluorescent lamp 20 tube. The rectifier circuit 110 is used to convert the AC power source into DC power for electronic startup, so that the t-rectifier circuit 11G is divided into a half-wave type [6-9] and a full-wave type [10, 11], and the half-wave type rectifier circuit has a low cost. The advantage of high ignition voltage 'but there will be electromagnetic humming when starting up. Therefore, the new electronic starter adopts the electromagnetic wave phenomenon of the Z-wave rectifying electric axis. The electronic start circuit 1247559 is used to turn on the voltage of the two ends of the light tube to determine whether or not electricity is applied to the fluorescent tube 2, and whether the fluorescent tube 2 is activated. When there is a power supply to the lamp, the voltage fine circuit (10) ^ activates the preheating timer circuit 140 for controlling the filaments of the fluorescent tube 2 () to be added, , and fixed. After the fluorescent tube 2 is preheated, the ignition circuit 13 is activated to generate a pressure, and then the fluorescent tube is turned on. Finally, when the voltage detection circuit 120 knows the power supply _, it will trigger the listening timer 14 〇, ^ the warm-up timer circuit returns to zero. Generally, in order to save costs, the conventional pre-calculation circuit is composed of a resistor and a capacitor (10) circuit as shown in the third figure. Also, the warm-up time of the Tianliu electronic starter is charged by the power pack 141 to charge the capacitor 143 to a predetermined value. When the electronic starter is to be reset, the electrical energy stored by j valley 143 is mainly discharged to zero via the electric group 142. Because the resistance 141 and the resistor 142 have to be maintained within a certain range, it is used to set the electric charge = 143 to a predetermined value. Therefore, the resistor 142 is generally tens of thousands of ohms: the taxi, so the conventional electronic starter cannot be reached. Fast timing reset ^ function ' _ can not have the ability to continuously and quickly repeat the money light to improve the above shortcomings, plus a timing reset circuit, so that the electronic starter can be completed in very short scales The reset action of Long Road. For example, it is not known as a fluorescent electronic starter with a fast re-ignition capability, which is composed of a rectifying circuit 11A, a voltage detecting circuit 12, a preheating 140' timing reset circuit 160 and an ignition circuit 130. The group ^, and such as I (1_1 and CN2 are connected at both ends of the fluorescent lamp 20 tube. The rectifier circuit 110 is used to convert the alternating current power source into a direct current for the electronic starter. Voltage detection I247559 ==^==" , _ is not the time. Fluorescent tube 2. After the preheating is completed, the point is used to generate - high voltage, and then the fluorescent lamp is turned on = 13 ϋ is triggered to learn the power supply, the _ _ _ preheating handle circuit 14 〇 Quickly reset to zero. This timing reset - only ==:=: 14° reset action, two ^, ^ ^ electric additionally 'when the mains abnormally drops to too low voltage in the second ί! propose a time reset With the voltage boost circuit, used for rail =: the size of the tube voltage to determine the lamp "suspicious: pre-1247559 References:

[1] STS Lee, HSH Chung, and S. YHui, "A novel electrode power profiler for dimmable ballasts using DC link voltage and switching frequency controls, IEEE Trans. Power Electronics, vol. 19, iss. 3, pp. 847-853 , May 2004.

[2] TF Wu, YC Wu, and ZY Su, “Design considerations for single-stage electronic ballast with dimming feature,” IEEE Trans. Industrial Applications, vol. 37,iss. 5, pp. 1537-1543, Setp. 2001 .

[3] G. C. Hsieh and C. H. Lin, “Harmonized strategy for breaking the striations in the fluorescent lamp,” IEEE Trans. Industrial Electronics, vol. 48, iss. 2, pp. 352-366, April 2001.

[4] HL Cheng, CS Moo, and WM Chen, "A novel single-stage hi gh-power-factor electronic ballast with symmetrical topology," IEEE Trans. Industrial Electronics, vol. 50,iss. 4, pp. 759- 766, Aug. 2003.

[5] C. S. Lin and C. L. Chen, “A novel single-stage push-pull electronic ballast with high input power factor,,, IEEE Trans. Industrial 1247559

Electronics, vol. 48, iss. 4, pp. 770-776, Aug. 2001.

[6] K. I. Gyoten and N. Yoshikawa, “Development of an electronic starter for fluorescent lamps,” Journal of IES. pp. 86-88, 1995.

[7] S· Yeo, D·H· Lee, and S·B· Song, “A simple electronic starter capable of end-of-life protection for fluorescent lamps,” Proc. IEEE Applied Power Electronics Conference and Exposition (APEC) , vol. 1, pp· 473-479, March 1999· [8] Gu Zhenguo, “Republic of China Patent: Improvement of the Instant Starter of Fluorescent Lamps”, Announcement Font Size: 360458, 1999/06/01 [9] Lu Zhaozheng, "Republic of China patent: fluorescent electronic starter,,, announcement size: 215985, 1993/11/11 [ι〇] Gu Zhenguo, "Republic of China patent: improvement of fluorescent electronic starter", announcement font number: 474549, 2002/ 09/11 [11] B. Marco, US Patent: Electronic starter circuit for fluorescent iamp", bulletin size: US5616992, 1997/04/01 [Summary] 1. The problem to be solved: The patent to be solved by the patent There are three main problems. One is that there is a fast 5 o'clock, and the electronic ribs 1 have a tree bile to repeat the starting force month b, ensuring that the electronic starter can also be correct at low voltage. Ϊ247559 = '二疋能根# The input power supply has a small view to determine the lamp's position so that it has a short warm-up time at high voltage and a long warm-up time in a low-voltage house to achieve a better warm-up effect. Guarding ^, 2, technical means to solve the problem · · A kind of fluorescent light electronic starting method, including the following steps · · · AC power supply into DC power for electronic starter; b · Detection of fluorescent tube two The voltage of the terminal is used to determine whether the fluorescent tube is used; when the private knife is connected to the fluorescent tube, when the power is added to the fluorescent tube, the warm-up time of the tube can be determined according to the size of the tube, so that it is high. The voltage has a short warm-up time, and has a long warm-up time at a low voltage, so that it can properly illuminate the fluorescent tube; 八 i generates a high voltage to illuminate the fluorescent tube; e· When the power is off, the warm-up timer circuit quickly returns to zero. A fluorescent lamp electronic starter, comprising: a rectifying circuit, which is located after the input end of the alternating current power source, is used to integrate the alternating current power source into a direct current power, and the electronic starting is used, and a voltage detecting circuit is located in the foregoing rectifying power After the wheel end, it is used to measure the voltage across the fluorescent tube to determine whether there is electricity added to the fluorescent tube; a preheating timer circuit is located after the voltage detecting circuit for Controlling the filament of the fluorescent tube for heating for a fixed time, an ignition circuit is located at the output end of the preheating timing circuit for generating a high voltage, thereby lighting the fluorescent tube; a timing reset and voltage boosting circuit, It is used to quickly reset the preheating timer circuit to zero, and has the function of voltage boosting, so that the electronic starter can also move normally at low voltage 11 1247559 =. The preheating timing circuit as described in the above, comprising at least a resistor and a capacitor, the ignition circuit described above, comprising at least one switch; and the front-inch reset and voltage boosting circuit, as described above, at least Includes a diode fish - ♦ resistance. Electric Fluorescent electronic starter, which includes at least: a resistor, its end and ignition, the switch connection in the road, with voltage boosting function? The electronic start H can also normally complete the lamp miscellaneous action during the health time, and at the time of the power supply, the capacitor has a fast discharge path in the circuit, and a diode is connected to the preheating timer. The capacitor in the circuit, the cathode is connected to the end of the resistor, is in the state of the road when the lamp is warmed up, and is in a closed state when the power is turned off. - A timing heavy circuit for a fluorescent lamp electronic starter, which comprises a resistor, one end of which is in the ignition circuit and which is in the "action" and its electrical suppression in the electrical circuit - fast discharge path ;-diode, = pole = on the surface, one of the capacitors in the road, the cathode is connected to the front = = state pre-scale is · shape 11, and in the power supply _, closed, the kind of fluorescent electronic starter , including: the first two: body, the first

Diode, third diode and fourth -* MA, (four) port: resistor, fourth resistor, fifth resistor and second telecommunications preheating timing circuit; first transistor, second transistor and : 12 !247559 Resistor constitutes - ignition circuit; sixth diode and seventh electric_time - timing, set and electricity; 1 lifting circuit; the first terminal and the second terminal are connected at both ends of the fluorescent tube. As described above, the bridge full-wave circuit, the gamma is used to supply the AC power supply to the electronic start-up n; the voltage detection circuit as described above is used to fine-tune the voltage across the fluorescent tube. In order to determine whether there is electricity added to the fluorescent tube, the fluorescent tube is staged; the preheating timing circuit as described above is used to control the filament heating of the glory tube - the fixed time; the ignition circuit as before 'Used to generate - high voltage, and then illuminate the fluorescent tube; as described above, the timing reset and voltage boosting circuit is used to quickly reset the above-mentioned pre-teaching timing circuit to zero, and has the voltage boosting The starter can also operate normally at low pressure. [Embodiment] As shown in Fig. 6, the fluorescent lamp electronic starter of the present invention is provided with a positive current circuit 11G, a voltage side circuit 12G, a warm-up timer circuit 14A, a voltage boosting circuit 17 and an ignition. The circuit (10) is composed, and =CN1 and (10) are connected at both ends of the fluorescent lamp 2 tube. The rectifier circuit is used to integrate the parent current power into DC power for the electronic starter. The voltage side $120 is used to calibrate the voltage across the light (4) to determine whether it is energized to the fluorescent tube 20 and whether the light tube 20 is activated. When it is judged that the source is added to the fluorescent tube 2G, the voltage fine circuit (10) will touch the pre-time circuit 14G' to control the filament of the fluorescent lamp (4) to be fixed. After the preheating is completed, the preheating circuit _ The igniting circuit 130 is configured to generate a high voltage to illuminate the fluorescent tube 20. Finally, 13 1247559 冨 voltage detection circuit 120 knows that when the power is off, it triggers the timing reset and voltage boost circuit 170 to quickly reset the warm-up timer circuit 14 to zero. The timing reset and voltage boosting circuit 170 will complete the resetting operation of the timing circuit 140 in a very short time. The energy can be quickly re-ignited. [Specific embodiment] As shown in the seventh figure, the present invention is compared. A good example. It is characterized by a streamlined structure, low cost and great commercial value. In the seventh figure, the diode =, D2 'D3 and Μ constitute - bridge full-wave rectification circuit 11 〇; and the resistance ^, · resistance R7, diode D6 and capacitor C2 constitute - voltage detection circuit, resistance R3, the resistor R5, the resistor R6 and the capacitor Ci constitute electric=Q1, the transistor Q2 and the resistor Ri constitute an ignition electric 3^, and the one pole D5 and the resistor R4 constitute the voltage boosting circuit m of the present invention; and the terminal CN1 and The CN2 is connected at both ends of the camp light 2 eunuch. The working principle of the whole electronic starter is described as follows: When the power supply is lit, the light tube (9) is in an open state, and the two ends of the electric σ start state are passed through the rectifier circuit 110, and the circuit formed by the electric power (4) is in the _ET Q1 - Positive voltage. At this time, since the voltage of the capacitor C1 is zero, the electric BOSKET Q1 R1 conduction side T (four) w 1247559 is pressed by a few volts, and the diode D5 is turned off. Therefore, the entire circuit can be equivalent as shown in the eighth figure. The voltage VQ1 and the voltage VR4 are formed by the on-resistance Ron and the resistor R4 of the MOSFET. Voltage VQ1 and voltage VR4 can be considered as a positive DC voltage but with a south chopping, as shown in Figure 9. For the convenience of analysis, this paper considers VQ1 and VR4 as the DC voltage, and because R7<<<> (R5+R6+R3), the voltage vc2 across the capacitor C2 can be expressed as follows:

:0.7 + (4

Ri R2+Ri (1)

The second time is that the warm-up timing circuit 140 can be as shown in the tenth figure. And its warm-up (2)

Tph Z=1{R5+Re)^x \〇ge _...^

〇 2 ON where the voltage V 〇 N is the voltage that the capacitor [I must charge when the transistor Q2 is turned on. Note that the preheating _ (the type is controlled by the capacitor C2 = voltage VC2. The voltage VC2 across the capacitor C2 can be directly seen by (1) and it will be proportional to the sum of VQ1 and voltage (10) + VC2) , and VQ1+ VC2 will also be proportional to the input of the city electric power mill. Therefore, the voltage VG2 at both ends will be directly proportional to the input power. In other words, =, Mingzhi electronic starter's record input power supply size to the second official = hot time 'make it at high voltage: electricity has a longer warm-up time to achieve better pre-= In addition to = 15 1247559, it can be clearly seen from (2) that the voltage VC2 is set to be greater than the voltage V〇N, (vc Λ \^2V〇n) will be positive, that is, the electronic starter will There is a positive warm-up time (3⁄43⁄4. If the voltage VC2 is less than the voltage Von, it means that the electronic starter has no warm-up time, and the fluorescent tube 20 cannot be started normally. It can be seen from the formula (1) that the present invention The timing reset and the resistor R4 in the voltage boosting circuit 17〇 additionally boost the voltage VC2 to ensure that the electronic starter can operate correctly at low voltage. After a period of preheating time (71⁄2), the base of the transistor Q2 The pole voltage is greater than 〇·7V, which makes the transistor Q2 turn on. At this time, the gate voltage of the M〇SFET Q1 will be equal to the collector-emitter voltage of the transistor Q2 (VCESAT=〇2v), so the MOSFET Q1 will open the axis instantaneously. And make the domain stabilizer a high emperor and then light the fluorescent tube. At this time the starter The effective circuit such as =, the 'capacitance α and C2 are full, the whole starter electric 1 and the other side: the ignorance of the electric __, the equivalent circuit of the opening such as the twelfth hour ^ C1 can be via R3 And R4 obtains a rapid discharge, and its discharge discharge (3) is also represented by R4 «R3, so it can be expressed as (4) discharge two 1 5 · ν ς Therefore, it can be clearly seen from the above formula that R4 is only a few ohms, 1247559 The electronic start-up circuit has an extremely fast timing reset capability, which can make the electronic start-up circuit have excellent rapid restarting capability. The thirteenth figure shows the lighting waveform of the fluorescent lamp under the commercial power l1〇V It can be clearly seen that it can normally illuminate the fluorescent tube, which can effectively increase the service life of the fluorescent tube. The fourteenth picture shows the lighting waveform of the fluorescent tube at the commercial power of 95V, which can clearly see the sum When working in normal commercial power supply n〇v, only the fluorescent tube can be normally lit, which can effectively increase the service life of the fluorescent tube, and prove that the electronic starter of the present invention can operate correctly at low voltage.

Reset function of the fluorescent electronic starter, which provides a single 囍A

The fifteenth figure is the preheating time of the invention under different mains, it can be clearly seen that the electronic starter of the invention can determine the warm-up time of the lamp according to the voltage of the lamp, so that it is short at high voltage. The warm-up time, at a low 1 pressure and 3 wins, has a longer working time, so that it can normally illuminate the fluorescent tube. As described above, the present invention has an automatic adjustment function for warm-up time and a quick application for timing, and a prayer.

1247559 [Simple description of the diagram], a picture shows the conventional fluorescent lamp, ballast and starter assembly circuit. The second figure is a block diagram of the conventional electronic starter block. The third figure is a schematic diagram of a conventional preheating timing circuit. The fourth figure is a block diagram 2 of the conventional electronic starter. The fifth figure is a schematic diagram of a conventional timing reset circuit. Figure 6 is a block diagram of the present invention. The seventh figure is a preferred embodiment of the present invention. F8 is the equivalent circuit of the invention before the fluorescent tube has been illuminated. The ninth diagram is the voltage VQ1 and voltage VR4 of the present invention. f is a simplified equivalent circuit of the present invention before the fluorescent tube is illuminated. The eleventh figure is an equivalent circuit for lighting the fluorescent tube of the present invention. The twelve figure is the equivalent circuit of the invention after the power is turned off. The thirteenth figure is the measured result of the invention under normal power supply 110V. The fourteenth figure is the actual measurement result of the invention under the decline of the commercial power to 95V. The fifteenth figure is the warm-up time of the invention under different mains. [Description of main component symbols] 10...Starter 20...Fluorescent lamp 30...Inductive ballast 40...Plug 110···Rectifier circuit 120···Voltage detection circuit 18 1247559 130···Ignition circuit 140··· Preheating timer circuit 160···clock reset circuit 161...switch 162···reset control circuit 170···clock reset and voltage boost circuits 141, 142, R1, R2, R3, R4, R5, R6, R7···resistance 143, C1, C2···capacitor

Dl, D2, D3, D4, D5, D6... diode

Ql-MOSPET Q2... transistor

19

Claims (1)

1247559 X. Patent application scope: 1. A fluorescent lamp electronic starter, comprising: a rectifying circuit, which is located after the input end of the alternating current power source, is used to integrate the alternating current power source into an approximate direct current for the electronic starter; The detecting circuit is located at the output end of the rectifier circuit, and is used for detecting the voltage across the fluorescent tube to determine whether electricity is applied to the fluorescent tube; y preheating timing circuit is located in the aforementioned voltage detection After measuring the circuit, the filament for controlling the fluorescent tube is heated for a predetermined warm-up time; an ignition circuit is located after the output end of the preheating timing circuit for generating a pressure, thereby lighting the fluorescent lamp A timing reset and voltage boosting circuit is used to make the aforementioned pre-clocking time 2 4 quickly return to zero, and has the function of voltage boosting, so that the starter can operate normally at low voltage. Such as the scope of patent application! The fluorescent lamp electronic starter of the item, wherein the 'rectified electric material full-wave rectifying circuit or one of the semi-current circuits. ‘If the fluorescent lamp described in the third paragraph of the patent application is electronically activated, the basin's preheating timer circuit includes at least a resistor and a capacitor. The fluorescent electronic starter of the above item, wherein the ignition circuit comprises at least one switch. Such as the application of the patent = patent, said the work of the first light of the light, the timing of the reversal of the surface (four) Wei at least include - two with: resistance. 6. A fluorescent lamp electronic starter comprising: 20 1247559 Lu 2 = one end of which is connected to one of the ignition circuit switches, and has an electric force 1 to enable the electronic start 11 to normally heat up at a low voltage. The action 'and when the power is off' provides a quick discharge path of the capacitor in the preheater 2; 7: a pole body whose one end is connected to one of the capacitors in the preheating circuit and is connected to one end of the resistor, When the lamp is warmed up, it is open circuit or when the power is off, it is in a closed state. 8. The fluorescent lamp electronic starter of claim 6, wherein the resistance of the resistor is about 0.5 to 1 ohm. ° Eight kinds of timing reset circuits for fluorescent electronic starters, including: 杈 two resistors, their terminals and the ignition circuit - the switch connection, the function of the pressure boost, the electronic starter is healthy It can also be normal ^, the action of preheating the tube, the forest is in the electric _, providing =;; the capacitor in the circuit is a fast discharge path; ... - the diode is connected to the capacitor in the preheating timer circuit The terminal end is connected to one end of the resistor, and is in a closed state when the lamp is warmed up, and when the power is off. 9. For example, please use the timing reset and voltage boost circuit of the device described in item 8 of the special sugar package, which is about 0.5-10 ohms. < Resistance value 1 〇, - A fluorescent lamp electronic starter, comprising: a first diode, a second diode, a third diode and a quadrupole forming a bridge full-wave rectification a circuit; 21 1247559 a first resistor, a second resistor, a fifth two; the body and a first capacitor form a voltage detecting circuit; a third resistor, a fourth resistor, a fifth resistor and a second The capacitor constitutes a preheating timing circuit; a first transistor, a second transistor and a sixth resistor form an ignition circuit; a brother six diode and a seventh resistor form a timing reset fish voltage boosting circuit; A first terminal and a second terminal are connected at both ends of the fluorescent tube. 11. The fluorescent lamp electronic starter of claim 1, wherein the bridge full-wave rectifying circuit is used to integrate the alternating current power source into a direct current for the electronic starter. 1 . The fluorescent lamp electronic starter according to claim 10, wherein the voltage detecting circuit is configured to detect the voltage across the fluorescent tube to determine whether electricity is added to the fluorescent device. Whether the light tube and the fluorescent tube are activated. 3. The fluorescent lamp electric appliance according to claim 10, wherein the preheating timing circuit is configured to control the heating of the glory lamp by a predetermined warm-up time. 4. As claimed in the first aspect of the patent application, wherein the ignition circuit is used to activate the light tube. (10) Xiao produces a partial pressure, and then illuminates the firefly. The second glory light as described in the first paragraph of the patent application is 'where the timing reset and the electric repeating circuit are used.】 above = 1247559 = the timing circuit is fast Return to zero, _ has a function of boosting, so that the electronic starter can also operate normally at low pressure. 6. The electronic starting method of the camping light lamp comprises the following steps: ^ rectifying the alternating current power source into an approximate direct current for use by the electronic starter; shaking the dragon at both ends of the glory lamp to determine whether there is electricity added to the light Lamp; judge f power supply plus human fluorescing, record the vine time of the mosquito tube at both ends of the Wei tube, so that it has a short preheating at high voltage: time, long at low voltage Preheating time; • Produce a pressure to illuminate the fluorescent tube; e. When the power is right, the timing circuit quickly returns to love. 7' - kind of fluorescent lamp electronic start-up Laijia from ^ adjustment method; Secondly, according to the size of the input voltage, automatically adjust the preheating of the fluorescent lamp 8 as claimed in the patent scope of the 17th item Lamp electronic start ^Preheating time automatic adjustment method 'Where' when the input voltage is large, prepare the warm-up time of the short-light fluorescent lamp.丨 The method for automatically adjusting the warm-up time of the electronic start of the camping light as described in claim 17 of the patent application, wherein, when the input voltage is small, the warm-up time of the fluorescent lamp is extended. twenty three