CN101815377A - Control system of fluorescent lamp and LED lamp integrated energy-saving lamp - Google Patents

Abstract

A control system of an energy-saving lamp integrating a fluorescent lamp and an LED lamp comprises a half-bridge circuit, an LC resonance and voltage reduction rectifying circuit, a control circuit, a self-oscillation half-bridge drive circuit and an LED drive circuit; the control circuit selects the LED lamp to work or the fluorescent lamp to work by distinguishing whether the on-off of the external power supply and the time interval between the off and on of the power supply are within the preset time; and power is supplied to the LED lamp and the fluorescent lamp through the LC resonance and voltage reduction rectifying circuit. When the user needs higher brightness, the fluorescent lamp is used for emitting light; when a user needs low brightness, the LED lamp is used for emitting light, a dimming circuit is not required to be added to dim the energy-saving lamp so as to change the brightness, and two sets of power supply systems are not required to be used for providing power supplies for the LED lamp and the fluorescent lamp respectively. Therefore, the control system of the fluorescent lamp and LED lamp integrated energy-saving lamp has the advantages of energy conservation, low cost, good performance, convenient operation and simple structure.

Description

A control system for energy-saving lamps integrating fluorescent lamps and LED lamps

technical field

The invention relates to the field of lighting equipment, in particular to a control method and system for an energy-saving lamp integrated with a fluorescent lamp and an LED lamp.

Background technique

At present, fluorescent lamps are widely used in daily life and working environment due to their advantages of high brightness, soft light, and high color temperature. When the lighting in passages and other places is dimmed, the fluorescent lamps in the prior art cannot meet the dimming requirements of these places. In order to achieve the above purpose of low-light lighting, the prior art adopts the following methods:

1. In addition, LED lamps are installed as supplementary light sources for fluorescent lamps. When weak lighting is required, turn off the fluorescent lamps and turn on the LED lamps. The disadvantage is that another set of power supply and control circuits for the LED lamp must be built, and when the power switches of the fluorescent lamp and the LED lamp are not at the same place, it will cause inconvenience to the operation.

2. Some dimmable energy-saving lamps are also used in the prior art. The disadvantages are: a special dimming device must be added in addition, and its structure is complex, its life is short, its cost is high, and the original ballast cannot be reused.

Therefore, the lighting sources in the prior art can no longer meet the needs of people, and there is an urgent need for a lighting control method and system that is easy to operate, simple in structure, energy-saving, and low in cost.

Contents of the invention

In order to solve the disadvantages of the prior art, the object of the present invention is to provide a control system for an energy-saving lamp integrated with a fluorescent lamp and an LED lamp, which is easy to operate, simple in structure, energy-saving, and low in cost.

The present invention is a control system for an energy-saving lamp integrated with a fluorescent lamp and an LED lamp, comprising:

The half-bridge circuit is used to receive the high-frequency pulse signal output from the oscillating half-bridge drive circuit, and convert the DC high-voltage power supply into a high-frequency high-voltage pulse power supply through the high-frequency pulse signal;

LC resonance and step-down rectification circuit, used to provide power for fluorescent lamps after performing LC resonance on the high-frequency and high-voltage pulse power output by the half-bridge circuit, and step down and rectify the high-frequency and high-voltage pulse power to form an LED drive circuit and control circuit to provide low-voltage DC power supply;

The control circuit is used to distinguish the on-off of the external high-voltage DC power supply and whether the interval between the disconnection and connection of the DC high-voltage power supply is within a preset time, and generate control signals for controlling the LED drive circuit and the self-oscillating half-bridge drive circuit;

A self-oscillating half-bridge drive circuit, used to generate high-frequency pulse signals of different frequencies to drive the half-bridge circuit according to the control signal of the control circuit;

The LED drive circuit is used to drive the LED lamp to work according to the control signal of the control circuit.

Preferably, the above-mentioned control system for the energy-saving lamp integrated with fluorescent lamp and LED lamp further includes a rectification and filtering circuit, which is used to rectify and filter the AC power supply to respectively provide the self-oscillating half-bridge drive circuit, the control circuit and the half-bridge The circuit provides high voltage DC power.

Preferably, the above-mentioned LED driving circuit is a constant current driving circuit, which is used to generate a constant current to drive the LED lamp to work.

Preferably, the aforementioned preset time is 2 seconds.

Preferably, the different frequencies of the high-frequency pulse signal generated by the self-oscillating half-bridge drive include a frequency for the LC resonant and step-down rectifier circuit to drive the fluorescent lamp to preheat and a frequency for ignition and light emission.

Compared with the prior art, the present invention has the following advantages: because the control system of the energy-saving lamp integrated with fluorescent lamp and LED lamp of the present invention distinguishes the on-off of the high-voltage DC power supply and whether the interval time between the disconnection and connection of the DC high-voltage power supply is determined by the control circuit. Within the preset time, choose to control the work of LED lights or fluorescent lights; and generate high-frequency high-voltage pulse power and low-voltage DC power through LC resonant and step-down rectifier circuits respectively, so that one circuit can provide power for LED lights and fluorescent lights at the same time. When users need higher brightness, use fluorescent lamps to emit light; when users need lower brightness, switch to LED lamps to emit light. As in the prior art, two sets of power supply systems are used to provide power for the LED lamp and the fluorescent lamp respectively. Therefore, the invented control system for the integrated energy-saving lamp of the fluorescent lamp and the LED lamp has the advantages of energy saving, low cost, good performance, convenient operation and simple structure.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the block diagram of the circuit principle of the control system of a kind of fluorescent lamp and LED lamp integration energy-saving lamp of the present invention;

Fig. 2 is a circuit diagram of a control system of an energy-saving lamp integrated with a fluorescent lamp and an LED lamp according to the present invention.

Detailed ways

In order to make the present invention easier to understand, the present invention will be further described below in conjunction with the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention.

A control system for an energy-saving lamp integrated with a fluorescent lamp and an LED lamp according to the present invention, as shown in Figure 1, includes:

The half-bridge circuit 30 is used to receive the high-frequency pulse signal output from the oscillating half-bridge drive circuit 60, and convert the DC high-voltage power supply into a high-frequency high-voltage pulse power supply through the high-frequency pulse signal;

The LC resonant and step-down rectifier circuit 40 is used to perform LC resonance on the high-frequency high-voltage pulse power output by the half-bridge circuit 30 to provide power for the fluorescent lamp 90, and to step down and rectify the high-frequency high-voltage pulse power to drive the LED The circuit 70 and the control circuit 50 provide a low-voltage DC power supply;

The control circuit 50 is used to distinguish the on-off of the external high-voltage DC power supply and whether the interval between the disconnection and connection of the DC high-voltage power supply is within the preset time, and generate control signals for controlling the LED drive circuit 70 and the self-oscillating half-bridge drive circuit 60 ;

Self-oscillating half-bridge drive circuit 60, used to generate high-frequency pulse signals of different frequencies to drive the half-bridge circuit 30 according to the control signal of the control circuit 50;

The LED driving circuit 70 is used for driving the LED lamp 80 to work according to the control signal of the control circuit 50 .

Preferably, the control system for the energy-saving lamp integrated with the fluorescent lamp and the LED lamp further includes a rectification and filtering circuit 20, which is used to rectify and filter the AC power supply to provide the self-oscillating half-bridge driving circuit 60, the control circuit 50 and the half-bridge circuit 30 respectively. A high-voltage DC power supply, and provides a power state detection signal to the control circuit 50 .

Because the control system of the energy-saving lamp integrating fluorescent lamp and LED lamp of the present invention distinguishes the on-off of the high-voltage DC power supply and whether the interval between the disconnection and connection of the DC high-voltage power supply is within the preset time through the control circuit 50, the LED lamp 80 is selectively controlled. work or the fluorescent lamp 90 works; and through the LC resonant and step-down rectifier circuit 40 to generate high-frequency high-voltage pulse power and low-voltage DC power, a circuit can provide power for the LED lamp 80 and the fluorescent lamp 90 at the same time. When the user needs higher brightness, use the fluorescent lamp 90 to emit light; There is no need to use two sets of power supply systems to provide power for the LED lamp 80 and the fluorescent lamp 90 respectively as in the prior art. Therefore, the control system of the energy-saving lamp integrated with the fluorescent lamp and the LED lamp of the present invention has the advantages of energy saving, low cost, good performance, convenient operation and simple structure.

Preferably, the LED driving circuit 70 is a constant current driving circuit, which is used to generate a constant current to drive the LED lamp 80 to work.

The preset time can be adjusted according to the system. Preferably, the control system of the energy-saving lamp integrating fluorescent lamp and LED lamp of the present invention can set the preset time to 2 seconds.

Preferably, the different frequencies of the high-frequency pulse signal generated by driving the self-oscillating half-bridge include a frequency for the LC resonant and step-down rectifier circuit 40 to drive the fluorescent lamp 90 to preheat and a frequency for ignition and light emission.

As shown in Figure 2, the control circuit 50 is composed of two D flip-flops U1A and U1B and peripheral circuits. The flip-flop U1A and the peripheral circuits are used to judge the state of the AC power input by detecting the voltage state of Vst, and its positive phase output terminal Q controls the oscillation frequency of the self-oscillating half-bridge drive circuit 60 ; the inverting output terminal Q controls the LED lamp 80 by not controlling the on-off of the LED drive circuit 70 . The trigger U1B and peripheral circuits control the preheating time of the fluorescent lamp 90 when U1A outputs the state that the fluorescent lamp 90 is on.

As shown in FIG. 2 , the control circuit 50 specifically includes D flip-flop U1A, D flip-flop U1B, resistors R8, R9, R10, R11, R12, R13, R14, R19, capacitors C8, C9, C10, C11, diodes D9, D10; the DC power supply Vst is grounded after passing through the resistor R8 and the capacitor C10, and the common terminal of the resistor R8 and the capacitor C10 is coupled with the clock signal input terminal of the D flip-flop U1A; the low-voltage direct current signal Vpp is grounded after passing through the resistor R9 and the capacitor C9, and the capacitor C8 and C9 is connected in parallel, diode D9 is connected in series with resistor R10 and connected in parallel with resistor R9, the DC signal VDD output between resistor R9 and capacitor C9 is grounded after passing through resistors R11 and R12, and the common end of resistors R11 and R12 is connected to the D flip-flop U1A The reset signal input terminal is coupled; the Q inverting output terminal of D flip-flop U1A is respectively coupled with the data input terminal of D flip-flop U1A and the reset signal input terminal of D flip-flop U1B through R19; the set input terminal of D flip-flop U1A is grounded ; The Q output terminal of the D flip-flop U1A is connected in series with the resistor R13 and the capacitor C11 in turn and grounded, the diode D10 is connected in series with the resistor R14 and then connected in parallel with the resistor R13, the common terminal of the resistor R13 and the capacitor C11 is connected with the set input of the D flip-flop U1B terminal coupling; the data input terminal and the clock signal input terminal of the D flip-flop U1B are grounded; the Q inverting output terminal of the D flip-flop U1B is coupled to the input terminal of the LED drive circuit 70; the Q output terminal of the D flip-flop U1B is connected to the self-oscillating half The second input terminal of the bridge driving circuit 60 is coupled; the Q output terminal of the D flip-flop U1A is coupled with the first input terminal of the self-oscillating half-bridge driving circuit 60 .

The above-mentioned D flip-flops U1A and U1B can be CD4013 chips, of course, the two flip-flops of the present invention can also use other chips of the same type. The above-mentioned control circuit 50 may also be realized by using other chip circuits.

The rectification filter circuit 20 includes an EMC filter circuit composed of an inductor L1, a resistor R1, and a capacitor C1, a bridge rectifier circuit composed of diodes D1, D2, D3, and D4, and a DC filter circuit composed of capacitors C2, C3, and a diode D5. After the rectification and filtering circuit 20, a relatively stable high-voltage DC power supply is obtained for the half-bridge circuit 30 to work; at the same time, the HV, the resistor R4, the filament on the fluorescent lamp 90Lamp, the resistor R5, and the diode D8 provide the bridge drive circuit with an initial operating voltage and reflect power supply status signals Vst.

The LED drive circuit 70 includes a constant current drive circuit composed of triodes Q3, Q4, resistors R6, and R7; the input end of the LED drive circuit 70 is coupled to the collector of the triode Q4 through the resistor R6, the emitter of the triode Q4 is grounded, and the The base is coupled to the emitter of the triode Q3, the base of the triode Q3 is coupled to the collector of the triode Q4, and the emitter of the triode Q3 is grounded through the resistor R7.

When the input terminal DRV_LED is at a high level (greater than the conduction voltage of the transistor Q3), the transistor Q3 is turned on, and the LED has a current flowing; when the passing current I has a voltage drop V=I*R7 on the resistor R7 greater than that of the transistor Q4 When the voltage is turned on, the triode Q4 enters the amplification area, and the base voltage of the triode Q3 decreases, thereby reducing the control current I, so that the current I≈Vbe/R7 passing through the LED can be guaranteed, so as to achieve a constant current and ensure the brightness of the LED. Stability and longevity.

When DRV_LED is at low level, both the transistor Q3 and the transistor Q4 are cut off, so that no current flows through the LED.

As shown in FIG. 2 , specifically, the self-oscillating half-bridge drive circuit 60 is composed of a self-oscillating half-bridge driver U2 and peripheral circuits, wherein the self-oscillating half-bridge driver U2 is an IR2153 chip, of course, other chips of the same type can also be used.

Specifically, the self-oscillating half-bridge drive circuit 60 includes resistors R15, R16, R17, R18, transistors Q5, Q6, capacitors C12, C13, C14, C15, C16, C17, diodes D11, D12, D13, D14, D15, IR2153 chip. Specifically, the first input terminal of the self-oscillating half-bridge driving circuit 60 is coupled to the base of the transistor Q5 through the resistor R15, the emitter of Q5 is grounded, the collector of Q5 is connected in series with the capacitor C12 and the capacitor C14 in turn, and then grounded, and the capacitor The common terminal of C12 and capacitor C14 is coupled to the CT input terminal of the IR2153 chip, the resistor R17 is respectively connected to the common terminal of the capacitor C12 and the capacitor C14, and the RT input terminal of the IR2153 chip, and the input terminal of the diode D11 is connected to the emitter of the transistor Q5. The output terminal of D11 is connected with the collector of transistor Q5; the second input terminal of self-oscillating half-bridge driving circuit 60 is coupled with the base of transistor Q6 after resistor R16, the emitter of Q6 is grounded, and the collector of Q6 is connected with capacitor C13. The common terminals of capacitors C12 and C14 are connected, the input terminal of diode D12 is connected to the emitter of transistor Q6, the output terminal of D12 is connected to the collector of transistor Q6; the COM terminal of the IR2153 chip is grounded; the DC power supply is connected to the VCC terminal of the IR2153 chip , the input terminal of diode D13 is connected to the DC power supply, the output terminal is connected to the VB terminal of the IR2153 chip; the two ends of the capacitor C16 are respectively connected to the output terminal of the diode D13 and the VS terminal of the IR2153 chip, and the DC power supply is grounded after passing through the capacitor C15. The power supply is grounded through the resistor R18, the output terminal of the diode D14, the input terminal of D14, the output terminal of D15, and the input terminal of D15. Output pulse signals with different phases.

Among them, the self-oscillating half-bridge driver U2, the diode D13, and the capacitor C16 form a half-bridge driving circuit, and its output terminals HO and LO drive the half-bridge circuit 30 to work. Capacitor C17, diodes D14, D15, and R18 form a power supply circuit, and when this part of the circuit works, its power is supplemented by this part of the circuit. Capacitor C15 is a filter capacitor.

Self-oscillating half-bridge driver U2, resistor R17, and capacitors C12, C13, and C14 form a self-oscillating circuit, and its oscillation frequency is shown in the following table:

first input terminal second input terminal IR2153 working frequency Remark 0 0 f0≈1/[1.38(R17+75)*C14] LED lights work 0 1 F≈1/[1.38(R17+75)*(C14+C13)] This status is not required 1 0 f1≈1/[1.38(R17+75)*(C14+C12)] Fluorescent lamp preheating 1 1 f2≈1/[1.38(R17+75)*(C14+C13+C12)] Fluorescent lights are working

0: Indicates that the first input terminal/second input terminal is low level, and the signal in the line is less than 0.3V.

1: Indicates that the first input terminal/second input terminal is high level, and the signal in the line is greater than 0.6V.

The half-bridge circuit 30 is composed of a field effect transistor Q1 and a field effect transistor Q2. The specific connection method is shown in FIG. The output DC power supply of 20 is connected, and the HO terminal and LO terminal of the IR2153 chip are respectively connected to the gate of Q1 and the gate of Q2.

The LC resonant and step-down rectifier circuit 40 consists of an LC resonant network composed of inductor L2, capacitor C6 and capacitor C7, which is used to generate a high-frequency AC signal satisfying the ignition and operation of the fluorescent lamp 90 to drive the fluorescent lamp 90. When the circuit works in the state where the LED lamp 80 is on, the LC resonance and step-down rectification circuit 40 deviates far from the resonance point, so high voltage will not be generated, and the fluorescent lamp 90 will not enter the working state; when the circuit starts to enter the preheating stage of the fluorescent lamp 90 , the preheating frequency deviates from the resonance point, the LED lamp 80 goes out, and the circuit energy gathers in the filament for preheating. When the LC resonance and step-down rectification circuit 40 enters the working stage of the fluorescent lamp 90, the working frequency rapidly approaches the resonance frequency, and the resonance circuit resonates, resulting in The high voltage ignites the fluorescent lamp 90 until the fluorescent lamp 90 works normally.

Among them, the secondary windings Ls1, Ls2 of the inductor L2, diodes D6, D7, resistor RF, capacitors C4, C5 and the voltage regulator tube Z1 form a step-down rectifier circuit. When the circuit is working, an induced voltage is generated on the secondary windings Ls1, Ls2 of the inductor L2. Through the diode D6 and the diode D7 full-wave rectification, so as to achieve the purpose of step-down. The resistor RF and the voltage regulator tube Z1 are used for voltage limiting control to prevent instantaneous high voltage from passing through the auxiliary windings Ls1 and Ls2 to damage other circuits when the fluorescent lamp 90 is ignited. Capacitors C4 and C5 are used for filtering.

The specific working process is as follows: when the power is turned on for the first time, the AC power supply is rectified by the diodes D1, D2, D3, and D4 of the rectifying and filtering circuit 20, and one path is filtered by the diode D5 and capacitor C3 to supply power to the half-bridge circuit 30; the other path is passed through the resistor R4 , R5 and the filament on Lamp of the fluorescent lamp 90, and the diode D8 to obtain a DC voltage Vst to the power input terminal of the oscillation driving chip U2 of the self-oscillating half-bridge driving circuit 60 . When the DC voltage Vst exceeds the starting voltage of the chip U2, the chip U2 starts to oscillate, and its output signals HO and LO are amplified through the power transistors Q1 and Q2 of the half-bridge circuit 30, and the output terminal VS passes through the capacitor C17 and the diode D15 all the way. , D14, and resistor R18 supply U2 with supplementary electric energy, so that U2 can work stably; the other way provides a loop through the inductance L2 of the LC resonance and step-down rectification circuit 40, the capacitors C6, C7, and the filament of the fluorescent lamp 90, the circuit works normally, and the main winding of L2 By coupling to the auxiliary winding, a high-frequency low-voltage high-current power supply is formed to form a full-wave rectification circuit through diodes D6 and D7 to provide the LED lamp 80 with a DC power supply +Vpp during operation, and the other way +Vpp is connected to the control circuit 50 and passed through diodes D9, Resistor R10 and capacitor C9 obtain the voltage VDD; one way of voltage VDD supplies power to chip U1, and the other way provides a reset signal to flip-flop U1A through resistor R11 and resistor R12. The output terminal Q does not output a high level, so that Q3 of the LED driving circuit 70 is turned on, and LED1-LED4 of the LED lamp 80 are turned on. The resistor R7 and the transistor Q3 of the LED driving circuit 70 form the constant current control circuit 50 of the LED lamp 80, which provides a constant DC current for the LED and satisfies the conditions for the normal operation of the LED.

When the power is cut off, the voltage of U2 power supply terminal Vst drops rapidly due to lack of supplementary AC power, and at the same time due to the "energy storage" function of capacitor C9, U1A remains in its original state. When the AC power is turned on, the power supply Vst changes from a low level to a high level, and a trigger level is provided to the clock signal input terminal CLK of U1A through the resistor R8 and the capacitor C10, so that the flip-flop U1A is reversed, and its non-inverting output terminal Q becomes high, the triode Q5 is turned on, the chip U2 (IR2153) works at f1 frequency (f1<f0), and the fluorescent lamp 90 starts to enter the preheating start state; Q3 remains in the cut-off state, and the LED lamp 80 will not be brightened. Due to the delay effect of the resistor R13 and the capacitor C11, after a period of time (generally 400-2000 milliseconds), the input level of the set input terminal of the flip-flop U1B turns to a high level, making the positive-phase output Q of the flip-flop U1B output high At this time, the transistor Q6 is turned on, the chip U2 works at f2 frequency (f2<f1), and the fluorescent lamp 90 starts to enter the ignition working state. After ignition, the fluorescent lamp 90 is normally lit.

Therefore, the power-off→power-on action is continuously performed within the preset time, so that the LED lamp 80 and the fluorescent lamp 90 can work alternately. Specifically, the preset time is the time when the capacitor C9 is charged and then discharged. As an embodiment of the control system for an energy-saving lamp integrated with a fluorescent lamp and an LED lamp according to the present invention, the preset time can be set to 2 seconds, and of course the preset time can also be adjusted as required.

Due to the operation of the fluorescent lamp 90, the DC signal Vpp outputs a low level, and then VDD outputs a low level, the reset signal input terminal of the first flip-flop inputs a low level, and the Q output terminal of the D flip-flop U1A outputs a high level.

When the fluorescent lamp 90 is on, turn off the power supply and turn on the power again, and the DC signal Vst is high, which provides a trigger level for the clock signal input terminal of the D flip-flop U1A, so that the output state of the D flip-flop U1A is reversed, and the output state of U1A is reversed. The non-inverting output terminal Q outputs a low level, and the Q inverting output terminal outputs a high level. Since the output of the D flip-flop U1B is controlled by the output terminal of the D flip-flop U1A, the Q output terminal of the D flip-flop U1B outputs a low level. level, the Q inverting output terminal of the D flip-flop U1B outputs a high level, because the Q inverting output terminal of the D flip-flop U1B is connected to the input terminal of the LED driving circuit 70, so the input terminal of the LED driving circuit 70 is high at this time level, the LED drive circuit 70 works. The chip IR2153 works at f0 frequency, and the fluorescent lamp 90 is off at this time.

The turning from the LED lamp 80 to the fluorescent lamp 90 to emit light is controlled according to the foregoing manner. Therefore, the control system of the fluorescent lamp and LED lamp integrated energy-saving lamp of the present invention only needs to control the on-off of the power supply and the interval between continuous disconnection and power-on, that is, through the control of a power switch, the fluorescent lamp 90 Alternately working with the LED lamp 80; and through the LC resonance and step-down rectification circuit 40 to generate high-frequency high-voltage pulse power and low-voltage DC power, a circuit can provide power for the LED lamp 80 and the fluorescent lamp 90 at the same time. When the user needs a higher brightness, the fluorescent lamp 90 is used to emit light; when the user needs a lower brightness, the LED lamp 80 is used to emit light. Therefore, the control system of the fluorescent lamp and LED lamp integrated energy-saving lamp of the present invention has energy saving, low cost, and high performance. Good, easy to operate, simple structure advantages.

The above description is only a preferred embodiment of the present invention, and of course the scope of rights of the present invention cannot be limited by this. It should be pointed out that for those of ordinary skill in the art, they can also Several improvements and changes are made, and these improvements and changes are also regarded as the protection scope of the present invention.

Claims (5)

1. the control system of fluorescent lamp and LED lamp integrated energy-saving lamp is characterized in that, comprising:

Half-bridge circuit is used to be received from vibration half-bridge drive circuit output high-frequency pulse signal, and by this high-frequency pulse signal DC high-voltage power supply is converted to the hf and hv pulse power supply;

LC resonance and step-down rectifying circuit, be used for hf and hv pulse power supply with the output of described half-bridge circuit and carry out behind the LC resonance, and this hf and hv pulse power supply is carried out after step-down, the rectification providing low-voltage dc power supply for led drive circuit and control circuit to fluorescent lamp provides power supply;

Control circuit is used to distinguish that the break-make of external high-voltage DC power supply and this DC high-voltage power supply disconnect, whether the on-interval time in Preset Time, produce the control signal of control led drive circuit and self-oscillation half-bridge drive circuit;

The self-oscillation half-bridge drive circuit is used for producing the high-frequency pulse signal of different frequency to drive half-bridge circuit according to the control signal of described control circuit;

Led drive circuit is used for the control signal driving LED lamp work according to described control circuit.

2. the control system of fluorescent lamp according to claim 1 and LED lamp integrated energy-saving lamp, it is characterized in that, the control system of described fluorescent lamp and LED lamp integrated energy-saving lamp also comprises current rectifying and wave filtering circuit, and being used for that AC power is carried out being respectively described self-oscillation half-bridge drive circuit, described control circuit and described half-bridge circuit behind the rectifying and wave-filtering provides high-voltage DC power supply.

3. the control system of fluorescent lamp according to claim 1 and LED lamp integrated energy-saving lamp is characterized in that described led drive circuit is a constant-current drive circuit, is used to produce the work of the described LED lamp of constant current driven.

4. the control system of fluorescent lamp according to claim 1 and LED lamp integrated energy-saving lamp is characterized in that, described Preset Time is 2 seconds.

5. the control system of fluorescent lamp according to claim 1 and LED lamp integrated energy-saving lamp, it is characterized in that the different frequency of the high-frequency pulse signal that described self-oscillation half-bridge driven produces comprises frequency and the luminous frequency of igniting that supplies described LC resonance and step-down rectifying circuit to drive described fluorescent lamp preheating.

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