CN2620456Y - Storage type concentration lamplight controller - Google Patents

Abstract

The storage-type cluster lighting control device is composed of a power supply circuit, a grid counting pulse sampling circuit, a clearing circuit, a counter, a read-only memory and a thyristor, which are electrically connected in common. When each incandescent lamp is equipped with such a control device, the control of cluster incandescent lamps can be realized. When the device is used for cluster control, no additional control lines are required, the control design and color are not limited, and there is no need for any modification to the existing cluster incandescent light circuit.

Description

Storage cluster lighting control device

(1) Technical field

The utility model relates to a lighting control device, which can realize the control of clustered incandescent lamps after each incandescent lamp is equipped with the control device, and belongs to the technical field of lighting control.

(2) Background technology

At present, computers or single-chip microcomputers are generally used to control cluster incandescent lamps. These control systems must have special control lines to control the entire lighting cluster. Due to the need to add new control lines, it not only increases the complexity of the control lines, reduces stability, and increases costs, but also is not conducive to the original installation. Good incandescent lighting for a retrofit. Therefore, the existing cluster lighting control device is not ideal.

(3) Contents of utility models

The purpose of the utility model is to provide a storage type lighting control device for the problems existing in the prior art. The device does not need to add any control lines, and the effect of overall control can be achieved through the pre-stored design and color content of each independent control device.

Fig. 2 is a circuit diagram of the utility model control device. According to the utility model, the storage-type cluster lighting control device is composed of a power supply circuit, a power grid counting pulse sampling circuit, a clearing circuit, a counter, a read-only memory, and a thyristor. The zero circuit, the counter, and the read-only memory are electrically connected; the zero-clearing circuit is electrically connected with the counter clearing terminal RST; the grid counting pulse sampling circuit is electrically connected with the counter counting terminal CLK; The data end of the read memory is electrically connected to the thyristor; the thyristor is electrically connected to the incandescent lamp.

In the utility model, the power supply circuit is composed of resistor R1, capacitors C1, C2, voltage regulator diode Z1, and rectifier diode Z2, which are electrically connected together; the grid counting pulse sampling circuit is electrically connected by resistors R2, R3, and rectifier diode Z3. composition; the clearing circuit is composed of capacitor C4 and resistor R4 electrically connected; the counter is composed of IC1 (the counter is an integrated circuit that can count the number of pulses); the read-only memory is composed of IC2 (the read-only memory is a storage An integrated circuit whose numbers can only be read out); the thyristor uses a bidirectional thyristor, which is a component that controls high-power on and off through a small signal.

In the above device, the parameters or requirements of each electrical component are as follows: R1 is 0.5~1MΩ; C1 is 0.33~0.47uF; Z1 is 9~12V; C2 is 100~220uF; R2 is 400~600KΩ; R3 is 30~50KΩ ; C4 is 0.33 ~ 0.47uF; R4 is 10 ~ 50KΩ; IC1 adopts CMOS type; IC2 can adopt EPROM or FLASH type; SCR withstand voltage must not be less than 400V. Various units used in the above description are common units in the field, wherein, MΩ means mega-ohm, KΩ means kilo-ohm, uF means microfarad, and V means volt.

The working principle of the control unit is as follows: when the power is turned on, the power circuit supplies power to the counter IC1 and the read-only memory IC2 at the same time, and charges the capacitor C4 of the clearing circuit, so that the clearing terminal RST of the counter IC1 is at a high level, ensuring The initial state of the counter is the zero state. In the grid counting pulse sampling circuit, R2, R3 and rectifier diode Z3 divide the voltage, and obtain a positive pulse and send it to the counting terminal CLK of the counter IC1, the counter counts the pulse, and IC1 counts the output (Q1, Q2, ... Q14) The binary number is used as the address (A0, A1, ... A12) of the read-only memory IC2, and a data line of IC2 (such as D0) is used as the output control signal for the final control of the thyristor. After the current is limited by the resistor R5, the control can be A silicon controlled SCR controls an incandescent lamp.

When performing cluster control, each lamp is equipped with a control device, and each control device obtains a counting pulse of a uniform beat from the power grid. The counter counts this pulse, and the counting output is used as the address of the read-only memory. Read the pre-written design and color arrangement content from the read-only memory, and control the incandescent lamp to switch on and off according to the content of the read-only memory, thereby forming an overall effect.

The content of the read-only memory is programmed with the pulse time as the unit. The pulse period obtained from the power grid is 20 milliseconds. The counter can divide the pulse frequency to obtain the count pulse of the required time length. For example, by dividing the frequency by 3, you can obtain a periodic pulse of 160 milliseconds, by dividing by 4, you can obtain a periodic pulse of 320 milliseconds, and so on. The content of an address in the read-only memory corresponds to a count cycle. Therefore, the product of the size of the ROM and the pulse of the counting cycle is the total non-repeating time of the executable suit. For example, if the counting period is 320 milliseconds, and the read-only memory is 8K, then the design and color control time of the controller is 320×8×1024=2621440 milliseconds, which is approximately equal to 2621 seconds, which is equivalent to 43 minutes, which should be said to be relatively long The cycle is not repeated.

The utility model has the following advantages or effects:

1. There is no central controller for cluster control, so there is no need to attach any control lines;

2. Since each lamp is completely independent from other lamps, its control pattern is not limited within the capacity of the read-only memory, and the design pattern depends entirely on people's imagination.

3. The control device can be installed directly without any modification to the existing cluster incandescent lighting circuit to realize cluster lighting effect control.

(4) Description of drawings

Fig. 1 is the circuit diagram of the utility model control device

(5) Specific implementation methods

As shown in Figure 1, the control device of the present utility model is composed of a power supply circuit, a power grid counting pulse sampling circuit, a clearing circuit, a counter, a read-only memory and a thyristor. The clearing circuit, the counter, and the read-only memory are electrically connected; the clearing circuit is electrically connected to the counter clearing terminal RST; the grid counting pulse sampling circuit is electrically connected to the counter counting terminal CLK; the counter output terminal is electrically connected to the address terminal of the read-only memory; The read-only memory data terminal is electrically connected to the thyristor; the thyristor is electrically connected to the incandescent lamp.

The power supply circuit is composed of resistor R1, capacitors C1, C2, Zener diode Z1, and rectifier diode Z2, which are electrically connected together; the grid counting pulse sampling circuit is composed of resistors R2, R3, and rectifier diode Z3, which are electrically connected together; the reset circuit consists of Capacitor C4 and resistor R4 are electrically connected; the counter is composed of IC1, which is a circuit that can count the number of pulses; the read-only memory is composed of IC2, which is an integrated circuit that stores numbers and can only be read out; The thyristor is composed of SCR, which is a component that controls high power on and off through small signals.

Claims (3)

1. A storage-type cluster lighting control device, characterized in that it is composed of a power supply circuit, a power grid counting pulse sampling circuit, a reset circuit, a counter, a read-only memory and a silicon controlled rectifier, and the interconnection relationship is as follows: The power supply circuit is electrically connected to the clearing circuit, the counter, and the read-only memory; the clearing circuit is electrically connected to the counter clearing terminal RST; the grid counting pulse sampling circuit is electrically connected to the counter counting terminal CLK; terminal electrical connection; read-only memory data terminal is electrically connected to the thyristor; the thyristor is electrically connected to the incandescent lamp. 2. The control device according to claim 1, characterized in that: the power supply circuit is composed of a resistor (R1), a capacitor (C1, C2), a Zener diode (Z1), and a rectifier diode (Z2) electrically connected together The grid counting pulse sampling circuit is composed of resistors (R2, R3) and rectifier diodes (Z3) electrically connected together; the clearing circuit is composed of capacitors (C4) and resistors (R4) electrically connected; 3. The control device according to claim 2, characterized in that: the resistance value of the resistor (R1) in the power supply circuit is 0.5-1MΩ, the parameter of the capacitor (C1) is 0.33-0.47uF, and the parameter of the other capacitor (C2) 100～220uF, the Zener diode (Z1) parameter is 9～12V; the resistance (R2) parameter in the power grid counting pulse sampling circuit is 400～600KΩ, and the other resistance (R3) parameter is 30～50KΩ; The capacitor (C4) parameter is 0.33～0.47uF, the resistance (R4) parameter is 10～50KΩ; the counter (IC1) adopts CMOS type; the read-only memory (IC2) adopts EPROM or FLASH type; the withstand voltage of the thyristor must not be less than 400V.

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