High-reliability intelligent switch device

Abstract

The invention discloses a high-reliability intelligent switch device, which comprises a shell, a capacitive screen, an LED fire line connection terminal, an electric supply fire line connection terminal and an intermediate plate, wherein the capacitive screen is arranged on the shell; a circuit board is arranged between the intermediate plate and a rear cover and comprises a current detection circuit, a thyristor, a control module, a dynamic current maintaining circuit, a zero cross detection circuit and an ambient light brightness induction module; a central processing module for controlling a capacitive touch screen assembly is electrically connected with the control module; the current detection circuit and the thyristor are connected between the LED fire line connection terminal and the electric supply fire line connection terminal in series; a zero line connection terminal and the LED fire line connection terminal are connected with a thyristor starting current circuit and a dynamic current maintaining circuit in parallel; and whether the dynamic current maintaining circuit is enabled or not is dynamically adjusted according to a detection current signal from the current detection circuit. According to the high-reliability intelligent switch device, the condition that current which flows through the control module flows through an LED lamp is avoided; and the phenomenon that the originally controlled LED lamp flickers or cannot be turned off is also avoided.

Description

technical field

[0001] The invention relates to the technical field of power switches, in particular to a high-reliability intelligent switch device. Background technique

[0002] The existing capacitive touch switch can only control the on and off of the LED light, only considering the lighting, the brightness of the LED light cannot be adjusted through the switch, which cannot meet the needs of more people; for example, it cannot be adjusted according to the season, illuminance On the one hand, LED lamps cannot be well adapted to traditional thyristor dimmers, because LED lamps have a built-in switching power supply and are driven by this switching power supply, and the current of the switching power supply when it is working Usually discontinuous, that is, there will be hundreds to thousands of current discontinuities in one cycle of alternating current. Even if the current is continuous, the current at the bottom of the current is often not enough to maintain the normal ...

Images