KR100820214B1 - Illumination intensity controller on the basis of radio frequency - Google Patents

Abstract

An illuminance controller on the basis of a radio frequency is provided to prevent damage of an oscillation element of a ballast due to unbalance of an AC signal of the ballast. A power input unit supplies an external input power by including a power blocking device. A power generation unit filters and rectifies voltage supplied from the power input unit and generates constant-voltage. An output signal conversion unit converts a signal at a power level type required for an input signal condition of a dimming output control unit by receiving the voltage from the power generation unit and includes a high power switching exclusive driver circuit IC and additional power level conversion driving circuits connected to the high power switching exclusive driver circuit IC. A CPU(Central Processing Unit) control unit includes a radio reception and manual control unit, a multi-connection port, and a CPU and supplies a programmed pulse width control signal to the output signal conversion unit by receiving an external signal. An illuminance controller includes the dimming output control unit and a dimming rectification circuit unit. The dimming output control unit supplies a control signal with the same phase as the power level conversion signal according to load power capacity. The dimming rectification circuit unit supplies pulsating current control power of an electronic ballast. An integrated illuminance controller includes an electronic ballast unit of each fluorescent lamp.

Description

Wireless intensity controller based on illumination intensity controller on the basis of radio frequency

1 is a block diagram of a conventional electronic ballast circuit

2 is a block diagram of a conventional dimming control electronic ballast circuit

3 is a conceptual diagram of a configuration of a conventional multi-illuminance control apparatus

4 is a conceptual diagram of a configuration for an apparatus for controlling illuminance of light according to the present invention;

5 is a block diagram of a multi-illuminance control apparatus according to the present invention

6 is a detailed view of a dimming rectifier circuit unit and an electronic ballast according to the present invention.

7 is a detailed view of an output signal converter and a dimming output controller according to the present invention;

8 is a detailed view of the CPU control unit according to the present invention;

9 is a detailed diagram of a dimming rectifying circuit unit, a dimming output control unit and an output signal conversion unit according to the present invention.

Explanation of symbols on the main parts of the drawings

10: power input unit 20: power generation unit 21: power filter unit

22: rectifier 23: constant voltage generation unit 30: roughness control unit

31: dimming rectifier circuit 32: dimming output control unit 40: CPU control unit

41: CPU 42: display and audible section 43: fault handling section

44: CPU protection part 45: Multiple connection port 46: Bowless body and manual control part

50: output signal conversion unit 60: electronic ballast

The present invention relates to an illuminance controller, and more particularly, to a radio (RF) based illuminance controller capable of controlling a single ballast control of several lighting loads as a single unit.

Currently, in the buildings of apartments and detached houses, the lamps for multi-lights (2 to 8 fluorescent light aggregates, hereinafter referred to as multi-lights) and fluorescent lamps composed of multi-lights in commercial stores are used. It is used to control the fluorescent lamp ON / OFF by using a wall switch or a remote controller, or to control the illuminance of the fluorescent lamp remotely by using a remote controller on a separate control panel. It is complicated and difficult to install, and it is used as an expensive system.In addition, the user also has a lot of difficulties in operating a complicated control device, and the expensive device is only used for a fluorescent lamp such as one or two conventional fluorescent lamps. Often used in inefficient circuits that use only ON / OFF functions, such as operation. .

In general, the conventional electronic ballast is in the form of controlling the light through the EMI (filter) circuit, rectifier circuit, inverter circuit and resonant circuit, as shown in Figure 1, the conventional dimming control ballast as shown in Figure 2 the external control level Dimming is performed by phase shifting to the control signal at the front of the oscillator with the conversion level of DC 1 ~ 10V through the signal port.

When controlling several such dimming control fluorescent lamps, separate power converter and dimming ballasts are required for each fluorescent lamp as shown in FIG. 3, and each of the power conversion and dimming ballasts is controlled by an illumination control unit (control panel). Since the control circuit was not easy to configure by finding and matching the signal line of each ballast in the control panel, and the number of load lights increased, the circuit became complicated, and there was difficulty in installation work. There was a problem with difficulties in operation.

Accordingly, the present invention is to solve this conventional problem, it is possible to operate without the converter and control panel panel necessary for dimming illuminance control in the equipment of the luminaire consisting of several fluorescent lamps, the additional configuration of the operating equipment is not required Is reduced and there is no inconvenience for the user to operate the luminaire, and also to simplify the installation.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

4 is a schematic diagram of a circuit diagram of an apparatus according to the present invention, which shows that an integrated illuminance controller based on a multi-way radio according to the present invention is installed to control a ballast of each fluorescent lamp.

5 is a detailed block diagram of the apparatus according to the present invention. The power input unit 10, the power generation unit 20, the illuminance control unit 30, the CPU control unit 40, the output signal conversion unit 50 and It is comprised by the electronic ballast part 60 of each light fixture.

That is, the power input unit 10 is AC power from which noise is removed by filtering a circuit protection and noise removing circuit composed of a fuse, a TNR, a condenser (C), and the like. RAC power) is output, and the output RAC 220V signal is supplied to the power generation unit 20 and the illuminance control unit 30.

The power generator 20 includes a power filter 21 for filtering through a power transformer (T2 in FIG. 7) of the power input unit 10, a rectifier 22, and a constant voltage generator 23 for generating a constant voltage. AC 15 ~ 8V signal lowered through the power transformer is passed through the power filter unit 21 composed of a capacitor and the DC voltage level through the rectifier 22 composed of rectifier diodes to generate a constant voltage composed of a constant voltage IC Through (23) The CPU control unit 40 and the output signal conversion unit 50 are supplied.

The voltage supplied from the constant voltage generation unit 23 includes two constant voltages (+5 V or less VCC, +15 V or less VCE) and one negative voltage (-5 V or less VEE) required for the output signal conversion unit 50, and a digital reference point. (Hereinafter referred to as DGND) and analog reference point (hereinafter referred to as AGND), the CPU control unit 40 supplies the VCC signal and the DGND signal, and supplies the RF receiver and the manual control unit 46 to an external remote signal (RF transmitter) or The control signal produced by the manual switch is read by the CPU to produce a programmed pulse width control signal and supplies it to the input signal of the output signal conversion unit 50. At this time, the generated signal is subjected to pulse width modulation according to the phase control so that the generated control output signal is not interrupted even in the sudden change of the control signal. In the present invention, in particular, in the CPU, the control signal through the RF transmitter of the operator converts the signal received by the RF receiver and the manual control unit 46 after RF conversion, and then converts it into an electrical signal and applies directly to the CPU As a result, the operation efficiency is improved by reducing the CPU control signal error and power noise induced in the control line.

In addition, a plurality of lights can be extended and operated through the multiple connection port 45 (Fig. 8) of the CPU control unit 40. That is, the hybrid IC U2 of the multiple access port 45 includes a power conversion and amplification circuit, and receives the VCC power and the GND signal generated through the power generation unit 20 to amplify the power conversion of the CPU. It receives the TTL level signal of PWM_OUT output from CPU U1 of the control unit, converts it into a power signal, amplifies it, generates a PWM_OUT1 signal, and inputs it to the output signal conversion unit 50. 2 pins of the hybrid IC U2 and J1 Port 1 port of GND signal of port 2 and output signal (hereinafter referred to as D-OUT) port for multi-connection are used. Port 3 of the hybrid IC (U2) and port 3 of J1 port GND signal of port 4 It is configured to operate as an input signal (hereinafter referred to as D-IN) port for multiple connection. As described above, the hybrid IC U2 of the multiple connection porter 45 is constituted of a circuit that satisfies the conditions of the input impedance and the input power level of the TLP250 IC and enables multiple connection through amplification. Thus, the multi-port connection port 45 transmits the signal for operation with the designated fluorescent ballast (hereinafter referred to as the main ballast) in the lamp and other fluorescent ballasts (hereinafter referred to as the sub-ballast) in the lamp. Connect D-OUT signal to port 2 and port 2, and connect and operate D-IN signal to port 3 and 4 of J1 to the sub-stabilizer, and connect the sub-stabilizer to another sub-stabilizer. Likewise, the D-OUT porter and the D-IN porter are connected to each other by a multi-porter to facilitate expansion operation (see FIG. 4).

The output signal converter 50 (FIGS. 7 and 9) receives another VCE, VEE, and AGND through the power generator 20, and outputs a signal at a power level required for the input signal condition of the dimming output controller 32. It receives the positive / negative voltage source supplied from the power generation unit 20, and uses these two potentials and uses ICs for high-power switching dedicated driver circuits (e.g., IGBT / Power, a commercial product of Toshiba) When using MOSFET Gate Driver Photo-IC, hereinafter referred to as TLP250), the output signal of driver TLP250 is directly supplied to high power control device. With the weak signal level applicable, the power conversion circuit is further configured in the present invention to facilitate power conversion control for multiple lamps.

The additional power conversion circuit according to the present invention has an AGND signal in combination with a power transistor of type A and type C, such as the power transistors Q3 and A and the power transistors Q4 and C, as described in FIGS. 7 and 9. It is composed of receiving output signal of TLP250 and TLP250 IC. It is easy to control low frequency when configuring power transistors of type B and D, and it is easy to control high frequency when configuring power transistors of type A and C. As described above, power conversion is possible to a wide range by using a combination of A-type and C-type power transistors. Where the base signal terminal of the power transistor (Q3) and the base signal terminal of the power transistor (Q4) are connected in common, short-circuit and supply ports 6 and 7, which are output signal terminals of the TLP250 (U2), to supply and connect the transistor (Q3). By supplying the VEE power supply level to the collector signal stage and supplying the VCE power supply level to the collector signal terminal of the transistor Q4, the control range can be controlled in a wide range from VEE to VCE level. Thus, control is made to the maximum control supply power range (0 to 20V) at the gate terminal of the power control device FET to maintain the maximum conversion width during control.

According to the power conversion signal supplied to the FET gate stage, the Schottky diode of the SD1 is an essential element in controlling the illuminance by using the oscillation of the source and drain stages. In this technical configuration, when controlling the + side signal level and the-side signal level of bipolarity, the type C power transistor operates in the + side signal level stage because the base signal of the C type power transistor has the + side phase, and the-side side. In case of the signal level, the A-type power transistor is operated to efficiently apply and operate the signal change amount, thereby improving the shaking of the control signal.

In addition, the signal of the gate terminal supplied to the FET changes in the amount of current according to the load variation. By using the power transistors of type A and type C, the supply current amount is supplied abundantly so that the flicker phenomenon of the low stage of the fluorescent lamp is generated. It is to be improved.

The dimming output control unit 32 (FIG. 7) of the illuminance control unit 30 has one end of the resistor R8 connected to a signal that is commonly connected to the emitter terminals of the power transistors Q3 and Q4 of the output signal conversion unit 50. The other end of the resistor R8 is signaled in common with the one end of the resistor R9 and the gate terminal of the FET Q5 which is the power control element, and the AGND signal that is the analog signal reference point through the other end of the resistor R9. Is connected to No. 12 of T2 and is in phase with the power level conversion circuit. This is the power level of the electronic ballast which is composed of analog signals, which is connected to one end of the filter T3 to become a common signal, so that the analog signal can be easily controlled by digital signal control. It is also supplied to the source terminal of the FET Q5 to maintain the control reference point.

The output signal of the drain stage of the FET Q5 of the dimming output control section 32 is supplied to the common connection terminal of D7 / EC1 / D4 / D3 of the dimming rectifier circuit section 31 (Fig. 9) and supplied to the pulse control power supply of the electronic ballast. do. At this time, the FET Q5 selects an appropriate high power control element suitable for the load power capacity, rectifies and filters the RAC signal input from the power input unit 10 using the dimming rectifier circuit 31, and outputs the pulsed leveled signal. The power level is changed by the output control signal of the FET Q5 and provided as an input signal of the electronic ballast, thereby controlling the power level. In this case, the reference point of the signal of the dimming rectifier circuit 31 and the output signal converter 50 is used. The common control of the AGND signal allows the AC signal to be rectified and then coincided with the input signal phase of the ballast.

On the other hand, since the configuration of the electronic ballast 60 is already known technology will not be described any more, for example as shown in Figure 5 EMI filter unit, rectifier circuit, inverter, overcurrent detection circuit, resonant circuit, etc. It is composed.

In addition, as shown in Fig. 4, the control point at the lower end of the illuminance control type using the oscillation IC is converted to unstable control point signal of the dimming ballast used for the illuminance control of the former fluorescent lamp. In case of failure, the operation of the entire ballast is shown as a failure, which leads to breakage of the ballast in case of an abnormal condition, and there are problems due to the occurrence of maintenance. On the other hand, the most important feature is that the source and drain terminals are shorted when the gate signal fails due to the characteristics of the FET device in the event of failure or problem of the control circuit.

According to the present invention, the control circuit is integrated into the existing fluorescent ballast and integrated, and also accommodates remote control such as RF and IR for easy operation so that the operator does not have to be attached to the installation. It only adds the number of ballasts according to the increase of the number, and the same control is achieved by simply connecting the control signal line with the existing installation, and thus there is no configuration of additional equipment.

In particular, in the case of low-power fluorescent lamps, flicker, which tends to appear when controlling at low voltage, or snaking due to the temperature drop of fluorescent lamps, ensures minimum tube voltage and current by the device according to the present invention. The illuminance control according to the control is achieved without the above problems, thereby reducing the lifespan of the fluorescent lamp and the failure of the ballast, and in particular, solves the problem that the oscillation element of the ballast is destroyed due to the imbalance of the AC signal, which is the biggest problem of the ballast. It became.

Claims (3)

A power input unit 10 for supplying external input power, including a power cutoff device; A power generator 20 for filtering and rectifying the voltage supplied from the power input unit and generating a constant voltage; A voltage is supplied through the power generation unit 20 to convert a signal to a power level in a form necessary for an input signal condition of the dimming output control unit 32, and a high power switching dedicated driver circuit IC (TLP250) and the high power switching only An output signal converter 50 connected to the driver circuit IC and including additional power level conversion driver circuits Q3 and Q4; Wireless reception and manual control unit 46, the multi-connection port 45 and the CPU 41, the control signal made through an external remote signal (wireless transmitter) or a manual switch is input, and inputs an external signal A CPU controller (40) for supplying the programmed pulse width control signal to the output signal converter; A dimming output control unit 32 for supplying a control signal in accordance with the load power capacity in the same phase as the power level conversion signal from the output signal conversion unit 50 and a dimming rectifier circuit unit 31 for supplying a pulse current control power of the electronic ballast. Illumination control unit 30 comprising a; And Wireless-based integrated illumination controller, characterized in that it comprises an electronic ballast 60 of each conventional fluorescent lamp. The integrated illuminance controller of claim 1, wherein the transistors of the additional power level conversion driving circuits (Q3, Q4) are A-type and C-type, respectively. 2. The integrated illuminance controller of claim 1, wherein the multiple access port comprises a power conversion hybrid IC (U2) which is a power level conversion driving circuit.

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