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Double-wire load control circuit

A technology of load control and control circuit, applied in the direction of program control, computer control, general control system, etc., can solve problems such as difficult to realize diversified functions

Active Publication Date: 2014-05-14
GD MIDEA ENVIRONMENT APPLIANCES MFG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a two-wire load control circuit, aiming to solve the technical problem that in the prior art, long-distance control appliances requiring engineering installation are difficult to realize diversified functions without adding control lines

Method used

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Examples

Experimental program
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Embodiment 1

[0023] figure 2 It is the two-wire control circuit diagram of the LED lighting lamp that realizes step-by-step dimming provided by the first embodiment of the present invention; for the convenience of description, only the parts related to this embodiment are shown, see figure 1 and figure 2 :

[0024] The LED lighting circuit that realizes step-by-step dimming has no main load 2 in the whole circuit, and the main load 2 is replaced by an open circuit. The rectifier bridge BR1 is the main load power supply circuit unit 1, the LED light string (LED1~LEDn) is the auxiliary load 4, the seesaw switch S1 is the load shifter 3, the self-recovery normally closed switch S2 is the auxiliary load switch 5, and the triode Q1 is the Sub-load electronic switch 64, resistance R1, resistance R2 and Zener diode ZD1 form external power supply detection circuit unit 62, electrolytic capacitors EC1~EC3 form energy storage circuit unit 63, Zener diode ZD2, resistors R5~R8, diode D1 form power...

Embodiment 2

[0031] image 3 It is a schematic diagram of the two-wire control circuit of the ceiling fan with decorative lighting provided in the second embodiment of the present invention; similarly, for the convenience of description, only the parts related to this embodiment are shown, see figure 1 and image 3 :

[0032] A second embodiment of the present invention is a ceiling fan with decorative lighting. The ceiling fan motor is the main load 2, there is no main load power supply circuit unit 1 here, and a short circuit is used instead. Capacitor governor W1 is load shifter 3), lighting LED is secondary load 4, self-recovery normally closed switch S2 is secondary load switch 5, microcontroller 61 also adopts SN8P2501, resistor R1, resistor R5 and Zener diode ZD1 forms the external power supply detection circuit unit 62, electrolytic capacitor EC2 and electrolytic capacitor EC3 form the energy storage circuit unit 63, triac T1 is the sub-load electronic switch 64, inductance L1, ca...

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Abstract

The invention belongs to the field of electrical-appliance control and particularly relates to a double-wire load control circuit which includes a main-load power-supply circuit unit which forms a power-supplying circuit with an external power supply, a main load and a load gear-shifting device which controls the main load. The load control circuit also includes a vice-load switch serially connected to the power-supplying circuit, a control circuit unit connected in parallel with the main load and a vice load which is connected with the main load and the control circuit unit. When the vice-load switch is switched on, the load gear-shifting device which controls the main load is capable of playing a normal gear adjusting role. When the load gear-shifting adjusting device is in a switch-on state, new functions are realized through operations on the vice-load switch. Therefore, a technical problem in the prior art, that it is difficult for a long-distance controlled electrical appliance which needs engineering installation to realize diversified functions on the basis that a control wire is not added is solved.

Description

technical field [0001] The invention belongs to the field of electric appliance control, in particular to a two-wire load control circuit. Background technique [0002] Among the large amount of electrical equipment at present, lighting lamps, roof fans and ceiling fans that need engineering installation are generally controlled by two wires in the control box on the wall to achieve long-distance control. Even if the controller is connected to add new functions, multiple connecting wires are required for control, and the wiring for lights, roof fans, and ceiling fans are all pre-buried in the wall, so it is difficult to refit them, and it is also difficult Add new functions directly on the electrical appliances; if the remote control technology is used to realize the control, the remote control itself is fragile and easy to lose, and the cost is relatively high. [0003] In the prior art, the utility model patent document with application number 200820093591.1 discloses "a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
Inventor 戴修敏尹宝民聂军健李益爱彭博超
Owner GD MIDEA ENVIRONMENT APPLIANCES MFG