KR200362578Y1 - Lighting/electric power reduction apparatus for discharge lamp - Google Patents

Abstract

The present invention receives a high-frequency filter for receiving electromagnetic power to filter the electromagnetic wave, a full-wave rectifying means for receiving the AC voltage filtered by the electromagnetic wave in the high-frequency filter and full-wave rectification to a direct-current power supply, and receiving the direct-current rectified by the full-wave rectifying means A power factor correction means for compensating power factor, a smoothing means for removing and smoothing the pulsation component contained in the DC power source whose power factor is compensated by the power factor correction means, and a smoothing means to remove the pulsation component contained in the DC power source An oscillation controller for receiving a smoothed DC power source and oscillating the square wave (pulse) signal necessary for a discharge lamp; and amplifying means for receiving and amplifying a discharge lamp lighting control signal (also called a square wave signal or a pulse signal) output from the oscillation controller; An igniter receiving a signal amplified by the amplifying means and generating a high voltage pulse; LC resonating means receiving LC high voltage pulse output from the igniter and turning on the discharge lamp, overcurrent protection means for stopping the oscillation operation of the oscillation controller when overcurrent flows in the discharge lamp, and lighting state of the discharge lamp for a predetermined time. And a lighting interval control means for controlling the oscillation operation of the oscillation controller to control the oscillation operation of the oscillation controller to control high frequency generation, and an AC power source applied to the full-wave rectifying means to prevent power consumption when the discharge lamp is damaged. It is provided with a power consumption prevention means for blocking.

Therefore, the present invention can reduce the loss of power by cutting off the power applied to the discharge lamp lighting driver circuit when the discharge lamp is broken, and can prevent the damage of the lighting driver circuit. Can be prevented.

Description

LIGHTING / ELECTRIC POWER REDUCTION APPARATUS FOR DISCHARGE LAMP}

The present invention relates to a lighting / power-saving device for a discharge lamp, and in particular, generates a stable high pressure to light a discharge lamp (for example, a metal halide lamp or a sodium lamp), and at the same time, the discharge lamp lighting drive circuit when the discharge lamp is broken. The present invention relates to a lighting / power saving device for a discharge lamp that can cut off the power supply to prevent power consumption.

In general, a discharge lamp lighting apparatus is disclosed in Korean Laid-Open Patent Publication No. 1999-43974 (published June 25, 1999). In the discharge lamp lighting apparatus disclosed in the publication, when the AC power source 1 is input as shown in FIG. 1, control power is generated in the control power generation circuit 8, and the control circuit 12 starts operation. The active filter control unit 16 of the control circuit 12 starts operation so that the active filter 3 boosts the input voltage from the rectifier circuit 2 to a high power factor and outputs a set DC voltage. ), And the active filter 3 turns on / off the switching element 3b by a high frequency signal from the active filter control unit 16.

When the switching element 3b is on, a current flows in the path of the reactor 3a → switching element 3b. At this time, electrical energy is accumulated in the reactor 3a, and when the switching element 3b is turned off, the reactor ( Energy accumulated in 3a) is accumulated in the capacitor 3d via the diode 3c, and when the reactor 3a releases the accumulated energy, energy is emitted at a voltage higher than the input voltage. Electric energy is charged to a voltage higher than the voltage.

The switching on time of the switching element 3b is sin in which the current waveform detected by the input current detection element 3e by the active filter control unit 16 is synchronized with the power supply voltage waveform detected by the input voltage detection circuit 9. The waveform is controlled so that the output voltage of the active filter detected by the output voltage detection circuit 10 output from the active filter control unit 16 becomes a set value.

The current limiting circuit control unit 13 determines the target discharge lamp current from the discharge lamp voltage read by the discharge lamp voltage detection circuit 11 so that the power of the high voltage discharge lamp 6 is constant, and the discharge lamp read by the discharge lamp current detection circuit 17. The current limiting circuit 4 is controlled so that the current matches the target discharge lamp current.

The inverter control unit 14 drives the inverter 5 at a constant frequency, converts the DC voltage output from the current limiting circuit control unit 13 into a low frequency AC voltage, and outputs it to the discharge lamp current detection circuit 17.

In Fig. 1, 5 is an inverter for converting a DC voltage into an AC voltage of low frequency, 7 is a high voltage pulse generating circuit for generating a high voltage pulse for starting the high voltage discharge lamp 6, and 11 is a high voltage discharge lamp 6; A discharge lamp voltage detection circuit for detecting a voltage, and 15 is a high voltage pulse generator circuit control unit for controlling the high voltage pulse generator 7.

By the way, the conventional discharge lamp lighting device configured as described above has the advantage that it is possible to secure good startability even when using various kinds of AC voltages such as 100V / 200V common, and the circuit loss is small, but even when the discharge lamp is broken, the driving circuit, eg For example, there are various problems such as the power supply to the electronic ballast (Igniter) not being able to save power.

Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to turn on / off a power saving device for a discharge lamp that can reduce power loss by cutting off the power applied to the discharge lamp lighting driving circuit when the discharge lamp is broken. To provide.

Another object of the present invention is to provide a lighting / power saving device for a discharge lamp that can prevent the lighting drive circuit from being damaged by continuously supplying power to the lighting circuit despite the breakage of the discharge lamp.

Still another object of the present invention is to provide a lighting / power saving device for a discharge lamp that can prevent a short circuit accident when the discharge lamp is broken.

In order to achieve the above object, the present invention provides a high frequency filter for receiving electromagnetic power and filtering electromagnetic waves, a full-wave rectifying means for receiving full-wave rectification of the AC voltage filtered by the electromagnetic waves from the high-frequency filter, and a full-wave rectifying with a direct current power, and the electric wave in the full-wave rectifying means. A power factor correction means for compensating the power factor by receiving a rectified DC voltage, a smoothing means for removing and smoothing a pulsation component contained in the DC power source whose power factor is compensated by the power factor correction means, and the smoothing means is included in the DC power source An oscillation controller that receives a smoothed DC power by removing a pulsed component and oscillates and controls the oscillation with a square wave (pulse) signal necessary for a discharge lamp, and receives a discharge lamp lighting control signal (also referred to as a square wave signal or a pulse signal) output from the oscillation controller. Amplifying means for amplifying and receiving a signal amplified by the amplifying means for a high voltage pulse An igniter for generating a light source, LC resonating means for receiving a high voltage pulse output from the igniter and resonating LC to light a discharge lamp, overcurrent protection means for stopping the oscillation operation of the oscillation controller when an overcurrent flows in the discharge light, and the discharge lamp Lighting state maintaining means for maintaining the lighting state of the oscillator for a predetermined time, lighting interval control means for controlling the oscillation operation of the oscillation controller to control high voltage generation, and the full-wave rectifying means to prevent power consumption when the discharge lamp is damaged. It characterized in that it comprises a power consumption preventing means for cutting off the AC power applied to.

1 is a block diagram schematically showing a conventional discharge lamp lighting apparatus,

2 is a block diagram of a lighting / power saving device for a discharge lamp according to one embodiment of the present invention;

3 is a detailed circuit diagram of a lighting / power saving device for a discharge lamp according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

110: high frequency filter 120: full-wave rectifying means

122: bridge circuit 130: power factor correction means

132: first op amp 140: smoothing means

150: oscillation controller 152: oscillating integrated circuit

170: discharge lamp 180: amplification means

190: Igniter 192: Phototriac

192a: photodiode 192b: optical triac

194: Triac 196: Transformers

200: LC resonant means 210: overcurrent protection means

212: second OP amplifier 220: lighting state maintenance means

222: buffer 224: third OP amplifier

226: fourth op amp 230: lighting interval control means

232: fifth OP amplifier 234: sixth OP amplifier

240: power consumption prevention means 242: first relay

244: second relay

Hereinafter, a lighting / power saving device for a discharge lamp according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram of a lighting / power saving device for a discharge lamp according to an embodiment of the present invention, Figure 3 is a detailed circuit diagram of a power saving device for a discharge lamp according to an embodiment of the present invention.

As shown in detail in FIGS. 2 and 3, the lighting / power-saving device for a discharge lamp according to the present invention includes a high frequency filter 110 that receives an AC power and filters electromagnetic waves, and an AC in which electromagnetic waves are filtered by the high frequency filter 110. Full-wave rectifying means 120 for receiving a voltage and full-wave rectification to a DC power source, Power factor correction means 130 for receiving a full-wave rectified DC voltage from the full-wave rectifying means 120 to compensate for the power factor, and the power factor correcting means 130 Smoothing means 140 for smoothing by removing the pulsating component contained in the DC power source is compensated for power factor), and smoothing the DC power by removing the pulsating component contained in the DC power from the smoothing means 140 An oscillation controller 150 for oscillating control by a square wave (pulse) signal necessary for a discharge lamp, and a discharge lamp lighting control signal (square wave signal or pulse signal) output from the oscillation controller 150. Amplification means (180) for receiving and amplifying, an igniter (190) generating a high voltage pulse upon receiving the signal amplified by the amplification means (180), and receiving a high voltage pulse output from the igniter (190). LC resonator means 200 for lighting the discharge lamp 170, overcurrent protection means 210 for stopping the oscillation operation of the oscillation controller 150 when overcurrent flows in the discharge lamp 170, and the discharge lamp 170 Lighting state holding means 220 for maintaining a lighting state of the control panel for a predetermined time, lighting interval control means 230 for controlling the oscillation operation of the oscillation controller 150 to control high voltage generation, and the discharge lamp 170. It is provided with a power consumption preventing means 240 for cutting off the AC power applied to the full-wave rectifying means 120 to prevent power consumption in the event of breakage.

The high frequency filter 110 is connected to the varistor (V1) for absorbing the surge voltage flowing between the hot line (L) and the neutral line (N), and in parallel to the varistor (V1) for filtering harmonics contained in the power supply voltage. A capacitor (C1), a line filter (LF1) for filtering impulsive noise (generated by lightning or lightning) included in an input power source in which harmonics are filtered by the capacitor (C1), and an output terminal of the line filter (LF1). A capacitor (C4, C3) with the ground wire (G) drawn out at an intermediate position to bypass the surge current input from the input terminal to ground, and between the ground wire (G) and the output terminal of the full-wave rectifying means (120). A capacitor C5 connected to bypass the noise of the electromagnetic field to the ground line G, and a charge connected to the capacitor C2, C3, C4, C5 connected to the rear end of the line filter LF1. Discharge resistor (R1) to discharge, and said neutral wire It is comprised by thermistor TH1 which connects to (N) and cuts off an input power supply when it overheats over predetermined temperature.

The full-wave rectifying means 120 receives a AC voltage output from the high-frequency filter 110 through a movable contact (a) and a fixed contact (b) of the second relay 244 for full-wave rectification with a DC power source ( 122, a capacitor C6 for filtering the pulsation included in the DC voltage full-wave rectified in the bridge circuit 122, and an output resistance for outputting the DC voltage filtered with the pulse current in the capacitor C6 ( R2).

The power factor correction means 130 has a first choke coil L1 for filtering the ripple voltage included in the DC voltage full-wave rectified by the full-wave rectifying means 120 and a ripple voltage at the first choke coil L1. A diode D1 for half-wave rectifying the filtered DC voltage, a capacitor C7 for smoothing the pulsating component by receiving a half-wave rectified DC voltage at the diode D1, and a half-wave rectification at the diode D1 to compensate for the power factor. Receives the reference voltage set by the resistors R3 and R4 at the inverting terminal (-), receives a sawtooth wave from the non-inverting terminal (+), and outputs a high level square wave when the voltage level of the sawtooth wave is high. When the Vcc voltage is applied to the bias voltage through the pull-up resistor R5 when the high-level square wave is output to the output terminal of the first OP amplifier 132 and the first OP amplifier 132, Q3) and the third transistor A diode D2 connected between the collector terminal of Q3 and the emitter terminal to prevent reverse current flow, and a resistor R6 connected to the emitter terminal of the third transistor Q3 to stabilize the operation; And a first field effect transistor FET1 which is turned on when the transistor Q3 is switched on.

The smoothing means 140 is a pi (π) type filter consisting of capacitors (C8, C9) and choke coil (L2) to smooth the DC voltage through the output resistance (R2) of the full-wave rectifying means (120) I adopt it.

The oscillation controller 150 is a diode (D3) for receiving a smoothed DC power and half-wave rectified by removing the pulsation component contained in the DC power from the smoothing means 140, and the DC power from the smoothing means 140 The oscillating integrated circuit 152 and the oscillating integrated circuit 152 of receiving the smoothed DC power by removing the included pulse component, and receiving the DC voltage half-wave rectified by the diode D3, A capacitor C11 for suppressing the generation of static electricity to protect the oscillating integrated circuit 152, and a resistor R5 and VR1 and a capacitor C10 for setting the oscillation time constant of the oscillating integrated circuit 152. It consists of several circuits.

The amplifying means 180 includes a second field effect transistor FET2 which is turned on when the positive voltage output from the oscillating integrated circuit 152 of the oscillation controller 150 is output to the bias resistor R8. The third field effect transistor FET3 is turned on when the negative voltage output from the oscillation integrated circuit 152 of the oscillation controller 150 is output to the bias resistor R9.

The igniter 190 is controlled by a lighting control signal (also referred to as a lighting control pulse) applied through the output resistor R30 when switching on the second and third field effect transistors FET1 and FET2 of the amplifying means 180. The conduction phototriac 192, the triac 194 conducting by receiving a gate signal during the conduction of the phototriac 192, and the alternating voltage at the switching-on of the triac 194 are applied with a high voltage. Transformer 196 for generating a pulse, current limiting resistor R31 for limiting the current flowing through optical triac 192b of phototriac 192, and optical triac of phototriac 192 And a resistor R32 disposed between the 192b and the triac 194 to stabilize the operation of the triac 194.

The LC resonance means 200 receives the high voltage pulse output from the transformer 196 of the igniter 190 when the second and third field effect transistors FET1 and FET2 of the amplifying means 180 receive the discharge lamp. The discharge charges of the choke coil L3 which lights 170, the capacitors C12 and C13 connected in series to the choke coil L3 and the capacitors C12 and C13 to increase the internal pressure are instantaneously. It consists of the capacitor C14 which discharges.

The overcurrent protection means 210 receives the current flowing through the discharge lamp 170 at the non-inverting terminal through the resistor R17, and receives the reference voltage set by the resistors R15 and R11 at the inverting terminal (-). Compared to the second OP amplifier 212 outputting a high level signal when an overcurrent flows, and the oscillation controller 150 when the high level signal is output to the second OP amplifier 212. In order to bypass the sawtooth current output from the oscillating integrated circuit 152 to the ground so that the circuit 152 is not operated, it is applied through the output resistor R18, the backflow preventing diode D9 and the bias resistor R19. The second transistor Q2 is switched on by the bias voltage.

The lighting state maintaining unit 220 receives a current flowing through the discharge lamp 170 and buffers the buffer 222 to prevent the distortion of the waveform, and receives the signal output from the buffer 222 at the non-inverting (+) terminal At the same time, the third OP amplifier 224 for receiving and amplifying the reference voltage set by the resistors R21 and R22 at the inverting terminal and non-inverting the signal output from the third OP amplifier 224 A fourth OP amplifier 226 that receives a reference voltage (REF) at the +) terminal and outputs a square wave signal having a high level by receiving the reference voltage REF from the inverting terminal and a high output from the fourth OP amplifier 226. When the square wave signal having the level is applied to the base terminal through the bias resistor R23, the third transistor Q3 is connected in parallel and the resistors R21 and R22 for setting the reference voltage are connected in parallel to each other. 224, diodes D7 and D8 acting to apply only a reference voltage and a pullup resistor R20. have.

The lighting interval control means 230 is switched on when a high level square wave output from the third OP amplifier 224 of the lighting state maintaining means 220 is applied to the base terminal through the bias resistor R29. When the transistor Q4 and the fourth transistor Q4 are switched on, the signal is received at the non-inverting (+) terminal and the reference voltage REF is received at the inverting (-) terminal. The resistor R27 and the capacitor ( The discharge lamp 170 according to the fifth OP amplifier 232 for outputting a high level signal for a time constant set by C19) and the high level signal output from the fifth OP amplifier 232. A reverse current prevention diode (D11) connected in series with a resistor (R25) to switch on the second transistor (Q2) of the overcurrent protection means 210 to stop the application of a high voltage to the voltage; The time constant (6 seconds) signal set by the resistor R26 and capacitor C18 connected to the output terminal of A sixth OP amplifier 234 for applying a high level signal to the base of the fourth transistor Q4 when the inversion (+) terminal is greater than the reference voltage compared to the reference voltage; and the sixth OP amplifier ( The diode D11 prevents the application of reverse current to the non-inverting (+) terminal of 234.

The power consumption preventing means 240 is connected between the triac 194 of the igniter 190 and the LC resonator means 200 so that when the discharge lamp 170 is broken (the current does not flow in the discharge lamp 170). When no current flows in the first relay 242 and the relay coil RY1 of the first relay 242 (the movable contact c). It is composed of a second relay 244 that is electrically connected to the fixed contact (d) to block the application of voltage from the high frequency filter 110 to the full-wave rectifying means (120).

Next, the operation and effect of the lighting / power saving device for a discharge lamp according to an embodiment of the present invention configured as described above will be described.

First, when the main switch SW1 is switched on to turn on the discharge lamp 170, the surge voltage flowing between the hot line L and the neutral line N in the varistor V1 of the high frequency filter 110 is absorbed, and The capacitor C1 connected in parallel to the varistor V1 filters the harmonics included in the power supply voltage, and the impulsive noise (such as lightning or lightning) included in the input power source in which the harmonics are filtered in the capacitor C1. Generated) is filtered by the line filter LF1, and then bypasses the surge current input from the input terminal to ground through the ground line G connected between the capacitors C4 and C3 to ground, and propagates the ground line FG and the radio wave. The capacitor C5 connected between the output terminals of the rectifying means 120 bypasses the noise of the electromagnetic field to the ground line FG, and to the discharge resistor R1 connected to the rear end of the line filter LF1. Capacitor (C2) (C3, C4) and (C5) discharge electric charges, and the input power is cut off when the thermistor TH1 connected to the neutral line N overheats a certain temperature or more.

The power supply voltage from which impulsive noise, noise, and surge voltage are removed from capacitors C2, C3, and C4 and C5 of the high frequency filter 110 is fixed to the movable contact a of the second relay 244. (b) full-wave rectification from the bridge circuit 122 of the full-wave rectifying means 120 to a direct current power source, pulses included in the direct-current voltage at the capacitor C6 is filtered and the power factor correction means through the output resistance (R2). Is output to 130.

The first choke coil L1 of the power factor correction means 130 filters the ripple voltage included in the DC voltage full-wave rectified by the full-wave rectifying means 120, and half-wave rectifies the DC voltage in the diode D1. The capacitor C7 receives the half-wave rectified DC voltage from the diode D1 and smoothes the pulsation component, and the half-wave rectified voltage from the diode D1 is compensated to compensate for the power factor of the first OP amplifier 132. When receiving the sawtooth wave from the non-inverting terminal (+) at the reference voltage set by R4) and receiving the sawtooth wave from the non-inverting terminal (+), when the voltage level of the sawtooth wave is high, it outputs a square wave of high level. ) Is conducted and the first field effect transistor FET1 is conducted to compensate for the power factor.

In addition, the DC voltage output from the full-wave rectifying means 120 is smoothed in a pi (π) type filter, that is, the smoothing means 140, formed of the capacitors C8 and C9 and the choke coil L2, and then the oscillation controller ( 150 is outputted to the oscillation integrated circuit 152 by half-wave rectified by the diode D3 of the oscillation controller 150 to oscillate the sawtooth wave in the oscillation integrated circuit 152 to provide the power factor correction means ( 130 is output to the first OP amplifier 132, and the bias voltage is applied to the base terminals of the second and third field effect transistors FET2 and FET3 of the amplifying means 180 through the bias resistors R8 and R9. Each of them is applied to alternately drive the second and third field effect transistors FET2 and FET3.

When the second and third field effect transistors FET2 and FET3 are switched on, the phototriac is controlled by a lighting control signal (also referred to as a lighting control pulse) applied through the output resistor R30 of the igniter 190. The photodiode 192a of the light emitting device 192 emits light, and thus the optical triac 192b of the phototriac 192 is switched on so that the phototriac 192 is turned on, so that the trig of the igniter 190 is turned on. The evil 194 is conducted so that the transformer 196 of the igniter 190 generates a high voltage pulse and outputs it to the LC resonator means 200.

At this time, the LC resonance is performed by the choke coil L3 of the LC resonator means 200 and the capacitors C12 and C13 to light the discharge lamp 170, and when the discharge lamp 170 is turned on, the capacitor C12, The charged charges charged in the C13) and the discharge lamp 170 are instantaneously discharged by the capacitor C14.

As the discharge lamp 170 is turned on, the second OP amplifier 212 of the overcurrent protection means 210 receives the current flowing from the discharge lamp 170 through the resistor R17 and at the same time, the resistor R15. And compares the reference voltage set by R11 at the inverting terminal (-), and outputs a high level signal when an overcurrent (when the current flowing through the discharge lamp 170 is large) flows, and the second OP amplifier 192 ) Is applied to the base terminal of the second transistor Q2 through the output resistor R18, the backflow prevention diode D9, and the bias resistor R19, thereby switching the second transistor Q2. In this case, the power factor correction sawtooth waveform signal output from the oscillating integrated circuit 152 of the oscillation controller 150 is bypassed to the ground through the second transistor Q2, so that the oscillating integrated circuit 152 is turned on. Should not be started.

In addition, as the discharge lamp 170 is turned on, the current flowing through the discharge lamp 170 is received from the buffer 222 of the lighting state maintaining means 220 to prevent and buffer the distortion, and output the buffer 222. The signal is received at the non-inverting (+) terminal, the reference voltage set by the resistors R21 and R22 is received at the inverting (-) terminal and amplified by the third OP amplifier 224. The high level signal output from 224 is received at the non-inverting (+) terminal of the fourth OP amplifier 226, and the reference voltage REF is received at the inverting (-) terminal to output a high level square wave signal. When the high-level square wave signal output from the fourth OP amplifier 226 is applied through the bias resistor R23 at the base terminal of the third transistor Q3, the third transistor Q3 is turned on to conduct the discharge lamp ( Maintain lighting state for a certain time even if power to light 170) is cut off. The.

In addition, the high-level square wave signal output from the third OP amplifier 224 of the lighting state maintaining means 220 is connected to the fourth transistor Q4 of the lighting interval control means 230 through the bias resistor R29. When applied to the base terminal, the fourth transistor Q4 is switched on. At this time, the signal is received from the non-inverting (+) terminal of the fifth OP amplifier 232 constituting the lighting interval control means 230, and at the same time, The voltage REF is received at the inverting terminal and outputs a high level signal for a time constant (2 seconds) set by the resistor R27 and the capacitor C19.

Therefore, the high level signal output from the fifth OP amplifier 232 is transmitted to the base terminal of the second transistor Q2 of the overcurrent protection means 210 through the resistor R25 and the reverse current prevention diode D11. Since the bias voltage is applied, the second transistor Q2 of the overcurrent protection means 210 is switched on and oscillation of the oscillation controller 150 for a time (2 seconds) set by the resistor R27 and the capacitor C19. The oscillating integrated circuit 152 does not oscillate because the power factor correction sawtooth waveform signal output from the integrated circuit 152 is bypassed to the ground through the second transistor Q2 of the overcurrent protection means 210. .

Then, the signal is non-inverted (+) for a time constant (6 seconds) set by the resistor R26 and the capacitor C18 connected to the output terminal of the fifth OP amplifier 232 of the lighting interval control means 230. When the voltage is higher than the reference voltage when received from the terminal, the fifth OP amplifier 232 applies a high level signal to the base of the fourth transistor Q4 of the lighting interval control means 230 to discharge the discharge lamp ( 170 is maintained off, and application of reverse current to the non-inverting (+) terminal of the fifth OP amplifier 232 is prevented by the diode D11.

On the other hand, when the discharge lamp 170 is broken or when the discharge lamp 170 is not coupled to the socket (not shown), the relay coil of the first relay 242 constituting the power consumption preventing means 240 ( Since no current flows through RY1, the relay coil RY2 DP current of the second relay 244 flows as the movable contact c is connected to the fixed contact d, and the second relay 244 is operated. Since the contact point (a) is separated from the fixed contact point (b) and no AC power is applied to the full-wave rectifying means 120, power consumption is prevented.

Therefore, the present invention can reduce the loss of power by cutting off the power applied to the discharge lamp lighting driver circuit when the discharge lamp is broken, and can prevent the damage of the lighting driver circuit. Can be prevented.

In the above description, although illustrated and described with reference to specific embodiments, the present invention is not limited to this, for example, by those of ordinary skill in the art without departing from the concept of the present invention Of course, the design can be changed in various ways.

As described above, according to the lighting / power-saving device for a discharge lamp according to the present invention, a high frequency filter for receiving electromagnetic power and filtering electromagnetic waves, and a full-wave rectification for receiving full-wave rectification with an AC voltage filtered with electromagnetic waves from the high frequency filter. A power factor correction means for compensating the power factor by receiving the DC voltage rectified by the full wave rectification means, and a smoothing means for removing and smoothing the pulsation component contained in the DC power source whose power factor is compensated by the power factor correction means; An oscillation controller for removing oscillation components included in the DC power supply from the smoothing means to receive a smoothed DC power source and controlling the oscillation with a square wave (pulse) signal required for a discharge lamp, and a discharge lamp lighting control signal output from the oscillation controller (square wave signal) Amplification means for receiving and amplifying the same); An igniter receiving a signal amplified at the stage and generating a high voltage pulse, LC resonating means receiving LC high voltage pulse output from the igniter to light a discharge lamp, and oscillating operation of the oscillation controller when an overcurrent flows in the discharge lamp. Overcurrent protection means for stopping, lighting state holding means for maintaining the lighting state of the discharge lamp for a predetermined time, lighting interval control means for controlling the oscillation operation of the oscillation controller to control high voltage generation, and when the discharge lamp is broken Since it is provided with a power consumption preventing means for cutting off the AC power applied to the full-wave rectifying means to prevent power consumption, it is possible to reduce the power loss by cutting off the power applied to the discharge lamp lighting drive circuit when the discharge lamp is broken. It is possible to prevent damage to the lighting drive circuit and to prevent damage to the discharge lamp. There is an excellent effect that it can prevent accidents.

Claims (12)

High frequency filter 110 for receiving electromagnetic power to filter the electromagnetic wave, full-wave rectifying means 120 for full-wave rectification to the DC power receiving the AC voltage filtered by the electromagnetic wave in the high frequency filter 110, the full-wave rectifying means 120 Power factor correction means 130 for compensating power factor by receiving a full-wave rectified DC voltage and smoothing means for smoothing by removing the pulsation component contained in the DC power source power factor compensated in the power factor correction means 130 And an oscillation controller 150 for removing oscillation components contained in the DC power from the smoothing means 140 to receive a smoothed DC power and oscillating the square wave (pulse) signal necessary for discharge, and the oscillation controller ( Amplification means 180 for receiving and amplifying a discharge lamp lighting control signal (also referred to as a square wave signal or a pulse signal) output from 150; and a high voltage receiving the amplified signal from the amplifying means 180 An igniter 190 for generating a pulse, LC resonator means 200 for turning on the LC lamp by receiving the high voltage pulse output from the igniter 190, and an overcurrent flows in the discharge lamp 170. The overcurrent protection means 210 for stopping the oscillation operation of the oscillation controller 150, the lighting state maintaining means 220 for maintaining the lighting state of the discharge lamp 170 for a predetermined time, and the oscillation controller 150. Lighting interval control means 230 for controlling the oscillation operation to control the generation of high voltage, and power consumption for cutting off the AC power applied to the full-wave rectifying means 120 to prevent power consumption when the discharge lamp 170 is damaged. Light-emitting / power-saving device for a discharge lamp, characterized in that it comprises a prevention means (240). The varistor (V1) of claim 1, wherein the high frequency filter (110) is connected to the varistor (V1) in parallel with the varistor (V1) and absorbs the surge voltage flowing between the hot line (L) and the neutral line (N). A capacitor (C1) for filtering the harmonics, a line filter (LF1) for filtering impulsive noise (generated by lightning or lightning) included in the input power from which harmonics are filtered by the capacitor (C1), and the line Capacitors C4 and C3, which are connected to the output terminal of the filter LF1 and with which the ground current G is drawn at an intermediate position so as to bypass the surge current input from the input terminal to ground, and the ground line G and the full-wave rectifying means ( A capacitor C5 connected between the output terminals of 120 to bypass the noise of the electromagnetic field to the ground line G, and a capacitor C2 (C3, C4) (C5) connected to the rear end of the line filter LF1. Discharge resistance (R) for discharging the charge charged in the 1) and a thermistor (TH1) connected to the neutral wire (N) to shut down the input power when overheated by a predetermined temperature or more. The method of claim 1, wherein the full-wave rectifying means 120 receives the AC voltage output from the high frequency filter 110 through the movable contact (a) and the fixed contact (b) of the second relay 244 as a direct current power source The bridge circuit 122 for full-wave rectification, the capacitor C6 for filtering the pulses included in the direct-current voltage rectified by the bridge circuit 122 to DC, and the direct-current voltage filtered for the pulses in the capacitor C6. Light-emitting / power-saving device for a discharge lamp, characterized in that it is composed of an output resistor (R2) for outputting. According to claim 1, wherein the power factor correction means 130 is a first choke coil (L1) for filtering the ripple voltage included in the DC voltage full-wave rectified by the full-wave rectifying means 120, and the first choke coil ( A diode D1 for half-wave rectifying the DC voltage filtered by the ripple voltage at L1), a capacitor C7 for smoothing the pulse component by receiving the half-wave rectified DC voltage at the diode D1, and the diode to compensate for the power factor The voltage half-wave rectified at (D1) receives the reference voltage set by the resistors (R3, R4) at the inverting terminal (-), and receives a sawtooth wave at the non-inverting terminal (+). When the Vcc voltage is applied as the bias voltage through the pull-up resistor R5 when the high-level square wave is output to the output terminal of the first OP amplifier 132 and the first OP amplifier 132 that output the square wave of the level, The third transistor Q3 being conducted, A diode D2 connected between the collector terminal and the emitter terminal of the third transistor Q3 to prevent the flow of reverse current and a resistor connected to the emitter terminal of the third transistor Q3 to stabilize the operation. (R6) and a first field effect transistor (FET1) which is turned on when switching on the transistor (Q3). According to claim 1, wherein the oscillation controller 150 is a diode (D3) for receiving a smoothed DC power by removing the pulsation component contained in the DC power from the smoothing means 140 and half-wave rectification, and the smoothing means ( An oscillation integrated circuit 152 for receiving a smoothed DC power by removing the pulse current component included in the DC power at the same time, and receiving and oscillating the DC voltage half-wave rectified by the diode D3, and the oscillation power. A capacitor C11 for suppressing the generation of static electricity in the integrated circuit 152 to protect the oscillating integrated circuit 152, and resistors R5 and VR1 for setting the oscillation time constant of the oscillating integrated circuit 152 and capacitors. A lighting / power saving device for a discharge lamp comprising a time constant circuit composed of (C10). The second field effect transistor of claim 1, wherein the amplifying means 180 is turned on when the positive voltage output from the oscillation integrated circuit 152 of the oscillation controller 150 is output to the bias resistor R8. (FET2) and a third field effect transistor (FET3) which is conducted when the negative voltage output from the oscillating integrated circuit 152 of the oscillation controller 150 is output to the bias resistor R9. Discharge lamp lighting / power saving device characterized in that. The lighting control signal of claim 1, wherein the igniter 190 is applied through an output resistor R30 when switching on the second and third field effect transistors FET1 and FET2 of the amplifying means 180 (lighting control). The phototriac 192 which is turned on by a pulse), the triac 194 that is turned on by receiving a gate signal when the phototriac 192 is turned on, and when the triac 194 is switched on. A transformer 196 receiving an AC voltage to generate a high voltage pulse, a current limiting resistor R31 for limiting a current flowing through the optical triac 192b of the phototriac 192, and the phototriac 192 And a resistor (R32) disposed between the optical triac (192b) and the triac (194) to stabilize the operation of the triac (194). The method of claim 1, wherein the LC resonator means 200 is output from the transformer 196 of the igniter 190 when switching on the second and third field effect transistors (FET1, FET2) of the amplifying means (180) The choke coil L3 for turning on the discharge lamp 170 by receiving a high voltage pulse, the capacitors C12 and C13 connected in series to the choke coil L3 to increase the breakdown voltage, and the capacitors C12 and C13. A light-emitting / power-saving device for a discharge lamp, characterized in that it comprises a capacitor (C14) for instantaneously discharging the discharge charge. According to claim 1, wherein the overcurrent protection means 210 receives the current flowing in the discharge lamp 170 at the non-inverting terminal through the resistor (R17), and at the same time inverts the reference voltage set by the resistors (R15, R11) A second OP amplifier 212 that outputs a high level signal when an overcurrent flows when compared to the terminal (-); and the oscillation controller when the high level signal is output to the second OP amplifier 212. In order to bypass the sawtooth current output from the oscillating integrated circuit 152 to the ground so that the oscillating integrated circuit 152 of 150 is not operated, the output resistance R18, the backflow preventing diode D9, and the bias resistor ( And a second transistor (Q2) switched on by a bias voltage applied through R19). The method of claim 1, wherein the lighting state maintaining means 220 receives a current flowing in the discharge lamp 170 to buffer to prevent distortion of the waveform and the non-inverting signal output from the buffer 222 A third OP amplifier 224 which receives at the positive terminal and amplifies the reference voltage set by the resistors R21 and R22 at the inverting terminal and outputs the third OP amplifier 224. A fourth OP amplifier 226 for receiving a signal from a non-inverting (+) terminal and receiving a reference voltage REF from an inverting (-) terminal to output a high-level square wave signal; and the fourth OP amplifier ( When the high-level square wave signal output from 226 is applied to the base terminal through the bias resistor R23, the third transistor Q3 conducts and the resistors R21 and R22 for setting the reference voltage are connected in parallel. Diodes D7 and D8 acting to apply only a reference voltage to the third OP amplifier 224 and a pullup resistor R2. A lighting / power saving device for a discharge lamp, characterized in that consisting of 0). The method of claim 1, wherein the lighting interval control means 230 is applied to the base terminal of the high-level square wave output from the third OP amplifier 224 of the lighting state maintaining means 220 through the bias resistor (R29) When the fourth transistor Q4 and the fourth transistor Q4 are switched on, the signal is received at the non-inverting (+) terminal and the reference voltage REF is received at the inverting terminal. A fifth OP amplifier 232 for outputting a high level signal for a time constant (2 seconds) set by the R27 and the capacitor C19, and a high level signal output from the fifth OP amplifier 232; A reverse current prevention diode (D11) connected in series with a resistor (R25) for switching on the second transistor (Q2) of the overcurrent protection means 210 to stop the application of a high voltage to the discharge lamp 170, When set by the resistor R26 and the capacitor C18 connected to the output terminal of the fifth OP amplifier 232 The sixth OP amplifier 234 which receives a number (6 seconds) signal from the non-inverting (+) terminal and applies a high level signal to the base of the fourth transistor Q4 when the signal is greater than the reference voltage compared to the reference voltage. And a diode (D11) for preventing the application of reverse current to the non-inverting (+) terminal of the sixth OP amplifier (234). The method of claim 1, wherein the power consumption preventing means 240 is connected between the triac 194 of the igniter 190 and the LC resonator means 200 when the discharge lamp 170 is broken (discharge lamp 170 In the case that no current flows in the c), the current does not flow in the first relay 242 that contacts the movable contact c with the fixed contact d, and the relay coil RY1 of the first relay 242. (When the movable contact c is in contact with the fixed contact d), the second relay 244 is turned on to block the application of voltage from the high frequency filter 110 to the full-wave rectifying means 120. Discharge lamp lighting / power saving device characterized in that.