KR970005117Y1 - Sequencing lighting control circuit of fluorescent lamp stand - Google Patents

Abstract

None.

Description

Sequential Flashing Control Circuit of Fluorescent Lamp Stand

1 is an overall circuit diagram of a sequential flashing control circuit of a fluorescent lamp stand according to an embodiment of the present invention,

2 is a detailed circuit diagram of the voltage distribution unit of the sequential flashing control circuit of the fluorescent lamp stand according to the embodiment of the present invention,

3 is a detailed circuit diagram of an oscillator of the sequential flashing control circuit of the fluorescent lamp stand according to the embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

10 rectifier 11 noise filter

12 back pressure part 13 diode bridge

20: oscillator 22: oscillator

30, 40: first and second fluorescent lamp driver 21: D-type flip-flop

The present invention relates to a sequential flashing control circuit of a fluorescent lamp stand. More specifically, a fluorescent lamp stand capable of sequentially blinking two fluorescent lamps using a single touch switch in a twin stand where two fluorescent lamps are mounted. It relates to a sequential flashing control circuit.

Fluorescent lamps and incandescent lamps are mainly used as general home lighting devices, but fluorescent lamps with much higher illumination and higher power efficiency than incandescent lamps are generally used more widely than incandescent lamps.

A technique for turning on the fluorescent lamp as described above has been disclosed in the Korean Utility Model Registration Application No. 92-1705 (Application Date: January 19, 1990 AD) "lighting device of the fluorescent lamp".

The above-mentioned "fluorescent lamp lighting device" does not shift the phase by the capacitor by simply rectifying the input power without back pressure rectification, thus eliminating the need to install a low frequency coil for phase correction, thereby generating noise due to the low frequency coil and There is no fear of overheating, and instead of increasing the voltage at the power input side to apply high voltage to the fluorescent lamp, a transformer is provided at the other end of the induction winding connected at one end to the input side of the fluorescent lamp, i.e., the transistor alternately turned on and off. It has an operating characteristic of supplying a voltage by connecting an inductor and a fluorescent lamp.

However, the conventional conventional fluorescent lamp driving circuit including the above-mentioned "fluorescent lamp lighting device" has a disadvantage in that the quality of the fluorescent light is not smooth by driving the fluorescent lamp using the frequency of commercial AC power supplied to the home. There is a drawback of using a push switch as a driving switch of a fluorescent lamp, which is not a method but a method of turning on and off only when a certain force is applied.

This drawback not only adds eye fatigue to the user when the conventional fluorescent lamp is used as a lighting device for a desk for students to study, but also inconveniences that the user must apply a certain force to operate the driving switch of the fluorescent lamp. In addition, the operation method of the drive switch seems to be lower than that of the contact method, and causes a problem of contact failure caused by mechanical wear of the drive switch.

In order to solve the problems as described above, by using a touch switch, the fluorescent lamp can be driven through the contact of the human body, and also by increasing the driving frequency of the fluorescent lamp so that the light of the fluorescent lamp can be felt more smoothly, and the fluorescent lamp Korean Utility Model Registration Application No. 92-17301 filed by the present applicant with the technology of saving power by supplying power to other parts of the fluorescent lamp driving circuit by using the output voltage inside the driving circuit. September 9, 1992, "fluorescent lamp driving circuit".

However, the conventional "fluorescent lamp driving circuit" has a problem in that it is not designed to drive two fluorescent lamps sequentially in a twin stand equipped with two fluorescent lamps.

Therefore, an object of the present invention is to solve the above-mentioned disadvantages, and in order to solve the sequential flashing control of a fluorescent lamp stand which can flash two fluorescent lamps sequentially using a single touch switch in a twin stand equipped with two fluorescent lamps. To provide a circuit.

The structure of the present invention as a trunk for achieving the above object, the commercial AC power as an input, when 220V power is input, rectifies it to DC power and outputs, and when 110V power is input, it is backed by DC A rectifier for rectifying and outputting the power;

An oscillator that is connected to the touch signal line and the output terminal of the rectifier, and generates and outputs a combination of high frequency signals in the order of 11 → 01 → 10 → 00 whenever a touch signal is input;

An input terminal is connected to an output terminal of the oscillator, and when a high frequency signal is inputted from the oscillator, a first fluorescent lamp driver driving the fluorescent lamp by boosting it;

An input terminal is connected to an output terminal of the oscillator, and a high frequency signal is inputted from the oscillator, and is boosted to form a second fluorescent lamp driver for driving a fluorescent lamp.

By the above-described configuration, a person with ordinary skill in the art to which this invention belongs will be described in detail with reference to the accompanying drawings the most preferred embodiment that can easily implement the invention.

1 is an overall circuit diagram of a sequential flashing control circuit of a fluorescent lamp stand according to an embodiment of the present invention.

As shown in FIG. 1, the configuration of the sequential flashing control circuit of the fluorescent lamp stand according to the embodiment of the present invention includes a rectifier 10 having an input terminal connected to AC signal lines AC1 and AC2, a touch signal line TS and a rectifier ( 10, an oscillator 20 having an input connected to an output terminal of the output terminal 10, first and second fluorescent lamp drivers 30 and 40 having an input connected to an output terminal of the oscillator 20, and an input terminal connected to an output terminal of the oscillator 20. It is made of a buzzer 50 is connected.

The structure of the rectifier 10 described above includes a varistor V1, a capacitor C1, a resistor R1, a noise filter 11, and a noise filter 11 connected in parallel with the AC signal lines AC1 and AC2. A diode connected to an output terminal of the voltage distribution unit 12 connected to an output terminal of the diode, a diode D2, a resistor R2 connected to an input terminal of the voltage distribution unit 12, and an output terminal of the voltage distribution unit 12. (D2), resistor R2, triac T1 whose gate is connected to the output terminal of the voltage distribution unit 12, diode bridge 13 connected to the output terminal of the noise filter 11, and noise. Lamp LP1, capacitors C2, C3, and C4, resistors R6, R3, and R5 connected to the output terminal of the filter 11, zener diodes ZD2 and ZD1.

The first fluorescent lamp driver 30 includes a transformer TN31 having an input terminal connected to an output terminal of the oscillator 20, a diode D12 and D11 connected to an output terminal of the transformer TN31, and a resistor. (R15, R16), FETs (F1, F2), transformer (TN32) having input terminals connected to the connection points of FETs (F1, F2), fluorescent lamps (LP2) and capacitors (C6) connected to transformer (TN32). , C10, C8, diode D4, and resistor R11.

The second fluorescent lamp driver 40 includes a transformer TN41 having an input terminal connected to an output terminal of the oscillator 20, a diode D10 and D9 connected to an output terminal of the transformer TN41, and a resistor. (R17, R18), FETs (F3, F4), transformers (TN42) connected to the connection points of the FETs (F3, F4), fluorescent lights (LP3) and capacitors (C7, C9) connected to the transformers (TN42). C11, diodes D5 to D7, and resistors R12 and R13.

2 is a detailed circuit diagram of a double voltage unit of the sequential flashing control circuit of the fluorescent lamp stand according to the embodiment of the present invention.

As shown in FIG. 2, the configuration of the double voltage unit 12 of the sequential flashing control circuit of the fluorescent lamp stand according to the embodiment of the present invention is a resistor (R38, R39) connected in series to the output terminal of the noise filter (11). ), A pre-voltage IC 121 having an input terminal connected to the connection points of the resistors R38 and R39, and resistors R40 and R41 and a capacitor C12 connected to the pre-voltage IC 121.

In the embodiment of the present invention, the AV50818 chip is used as the pre-voltage IC 121 described above, but the technical scope of the present invention is not limited thereto.

3 is a detailed circuit diagram of an oscillator of the sequential flashing control circuit of the fluorescent lamp stand according to the embodiment of the present invention.

As shown in FIG. 3, the configuration of the oscillation unit 20 of the sequential flashing control circuit of the fluorescent lamp stand according to the embodiment of the present invention includes a capacitor C15, a resistor R20, R21, a diode connected to the touch signal line TS. A capacitor C14, a resistor R19, a diode D13 connected to the output terminal of the rectifying unit 10, an inverter I21 connected to an input terminal of the diodes D13 and D14, and an inverter To the output terminal of the rectifier 10, the resistor R22, diode D15, capacitor C16 connected to the output terminal of I21, an inverter I23 connected to the anode terminal of the diode D15, and an output terminal of the rectifying unit 10. Input terminals are connected to the output terminals of the inverter 122 and the inverter 122 having an input terminal connected to a connection point of the resistors R23 and R24 and the capacitor C17 connected to the resistor R24 and the capacitor C17. Connected to the D-type flip-flop 21, the oscillator 22 connected to the output terminal of the D-type flip-flop 21, and the oscillator 22. The connected resistors R32 to R37, capacitors C21 to C27, diodes D17 and D18, and inverters I24 and I25 connected to the output terminals of the D flip-flop 21 and the inverter I25. The diode D19 and resistors R29 and R30 connected to the output terminal of the transistor are connected to the transistor Q1 and the diodes ZD23 and D20 connected to the resistor R30.

In this embodiment of the present invention, the NE556 chip is used as the oscillator 22.

The technical scope of this invention is not limited to this.

The operation of the sequential flashing control circuit of the fluorescent lamp stand according to the above-described configuration is as follows.

When the commercial AC power sources AC1 and AC2 are applied to the rectifying unit 10, the operation of the sequential flashing control circuit of the fluorescent lamp stand according to the embodiment of the present invention is started.

When the operation starts, the noise filter 11 of the rectifier 10 removes the noise signals included in the commercial AC power sources AC1 and AC2 input through the varistor V1, the capacitor C1, and the resistor R1. Subsequently, this is simultaneously applied to the double voltage unit 12 and the diode bridge 13.

The pre-voltage IC 121 of the double-voltage unit 12 operates the triac T1 when the commercialized AC power supply AC1 or AC2 is 110V, and inputs the commercial AC power supply AC1 or AC2. In the case of 220V, the triac T1 is not operated so that a constant DC voltage is always generated regardless of the magnitude of the input signal.

When the triac T1 is operated by the double voltage unit 12, the diode bridge 13 and the capacitors C2 and C3 operate as double voltage circuits, and the DC voltage generated by such double voltage circuits is obtained. Terminals 7 and 11 of the oscillator 20 are output.

When a DC voltage is generated and output from the diode bridge 13, the lamp LP1 connected thereto is operated to visually confirm that power is being supplied to the user.

In this state, when the touch signal TS is input to the sixth terminal of the oscillator 20 by the user, the touch signal TS is applied to the capacitors C15 and C16, the diodes D14 and D15, and the inverter. After the waveform is shaped while passing through I21 and I23, the waveform is output to the input terminal 3 of the D flip-flop 21.

In addition, the standardized touch signal output through the inverter I23 is output to the buzzer 50 through the diode D16 and the resistor R27 to operate the site 50 so that each time the user presses the touch switch. This can be confirmed acoustically.

The D-type flip-flop 21 is composed of two D-type flip-flops in the form of a counter, and each time a pulse is input to the input terminal 3 once, the output terminals 13 and 1 are 11 → 01. The output signal is generated in the order of → 10 → 00 and the like and is output to the input terminals 4 and 10 of the oscillator 22.

In this case, the signal output from the D-type flip-flop 21 through the output terminal 1 is not only output to the oscillator 22 but also transmitted to the base terminal of the transistor Q1 via the inverters I24 and I25. Therefore, when the signal output from the output terminal 1 of the D-type flip-flop 21 is in a high state, the transistor Q1 is turned on so that the DC voltage input to the eleventh terminal of the oscillator 20 is the transistor Q1. ) And a diode (D20) is supplied to the power supply terminal 14 of the oscillator 22, thereby allowing the oscillator 22 to operate.

The oscillator 22 generates and outputs a high frequency signal according to a combination of signals input to the input terminals 4 and 10. That is, a high frequency signal is generated and output so that a high frequency signal output from the output terminals 5 and 9 of the oscillator 22 can be output in a combination of 11 → 01 → 10 → 00, etc. according to the combination of the input signals. The high frequency signal output from the oscillator 22 of one oscillator 20 is input to each of the first and second fluorescent lamp drivers 30 and 40.

In this way, the high frequency signals inputted to the first and second fluorescent lamp drivers 30 are boosted by the transformers TN31, TN32, TN41, and TN42, and then applied to the fluorescent lamps LP2 and LP3, thereby providing the fluorescent lamps LP2 and LP3. Make it light.

Thus, the user keeps pressing the touch switch so that the fluorescent lights LP2 and LP3 are both lit at first (00), the second at only one (01), and the third at the other (10), The fourth allows both to be driven in an ordered sequence of off (00).

After the fluorescent lamps LP2 and LP3 are driven, the diodes behind the output terminals from the transformers TN32 and TN42 of the first and second fluorescent lamp driving units 30 and 30 even though DC voltage is not supplied to the eleventh terminal of the oscillator 20. The rectified DC voltage through D6 and D7 and the capacitor C5 is supplied to the power supply terminal 14 of the oscillator 22 through the eighth input terminal of the oscillator 20 so that the oscillator 22 continuously. To be able to operate.

If one of the fluorescent lights LP2 and LP3 is separated from the stand by the user while the stand is in use, the low state is passed from the first or second fluorescent lamp driving units 30 and 40 via the diodes D6 and D7. Signal is output to the input terminal 8 of the oscillator 20, and thus power is not applied to the power supply terminal 14 of the oscillator 22 of the oscillator 20, so that the operation of the oscillator 22 is stopped and unnecessary. The power consumption can be prevented.

As described above, in an embodiment of the present invention, a sequential flashing control circuit of a fluorescent lamp stand having an effect of sequentially blinking two fluorescent lamps using a single touch switch in a twin stand equipped with two fluorescent lamps may be provided. There is a number. This effect of the present invention can be used in the field of designing, manufacturing, and selling the stand.

Claims (4)

Rectifier 10 for rectifying and outputting to DC power when 220V power is input, when commercial AC power (AC1, AC2) is input, and when the 110V power is input, rectifies it to DC power and outputs it. And, the input terminal is connected to the output terminal of the touch signal line TS and the rectifier 10, the oscillator for generating a combination of high frequency signals in the order of 11 → 01 → 10 → 00 each time the touch signal is input ( 20 and the output terminal of the oscillator 20 is connected, when the high frequency signal is input from the oscillator 20, the first fluorescent lamp driver 30 for driving the fluorescent lamp LP2 by boosting it, and the oscillator 20 An input terminal is connected to an output terminal of the sequential flashing control circuit of the fluorescent lamp stand, characterized in that the high frequency signal is inputted from the oscillator 20 to boost the driving unit to drive the fluorescent lamp LP3. According to claim 1, When the DC power is output from the rectifying unit 10, by using this further comprises a lamp (LP1) that can visually confirm to the user that the power is input to the stand using the same Sequential flashing control circuit of the fluorescent lamp stand. The buzzer 50 according to claim 1 or 2, wherein each time a touch signal is input from the touch signal line TS, the buzzer 50 can be visually confirmed to the user that the user pressed the touch switch. A sequential flashing control circuit of a fluorescent lamp stand, characterized in that further comprises. The oscillator 20 of claim 1, wherein the oscillator 20 includes a capacitor C15, resistors R20, R21 and R22, diodes D14 and D15, and an inverter I21 for shaping the touch signal TS into a pulse waveform. , I23), a capacitor C14, a resistor R19, a diode D13 for converting the output signal of the rectifier 10 into a constant voltage, and a signal input from the inverter I23. Operation order of 11 → 01 → 10 → 00 according to the D-type flip-flop 21 generated by combining the pulse signals in the order of 10 → 00 and the pulse signal input from the output terminal of the D-type flip-flop 21 Oscillator 22 for generating and outputting a high frequency signal, and resistors R32 to R37, capacitors C21 to C27, and diodes D17 and D18 constituting the peripheral circuit of the oscillator 22. Flashing control circuit of fluorescent lamp stands.