Circuit control device

Abstract

The invention provides a circuit control device, which comprises keys (S1 and S2), an LED (LED1), a current limiting resistor (R1), a first end A of a voltage detection circuit formed by resistors (R2, R3 and R8) and a triode (Q1), and a second end B of the voltage detection circuit formed by resistors (R4, R5, R6 and R7) and a triode (Q2). The circuit control device of the invention has simple circuit structure, easy implementation, material cost reduction and strong reliability, and can be used under a specific occasion, such as an electric ion, greatly improves the usability and electric property.

Description

technical field [0001] The invention relates to a circuit control device, in particular to a circuit control device with continuously adjustable power. Background technique [0002] Under certain product requirements, due to structural limitations, electrical performance requirements, product cost considerations, etc., when the single-chip microcomputer cannot perform independent circuit design when detecting buttons and controlling LEDs, the circuit device can be very good. Complete design requirements. For example, if figure 1 It shows that in the steam-type electric iron, the steam oven, water tank, water pump, gear position indicator, micro-control chip single-chip microcomputer, etc. are all designed in the A terminal (electric iron base), and the powerful steam control key, continuous steam control key and The button indicator lights and 220V heating chassis are all designed in the B terminal (the handle of the electric iron). According to the usual circuit design, 5...

AI Technical Summary

Problems solved by technology

For example, if figure 1 It shows that in the steam-type electric iron, the steam oven, water tank, water pump, gear position indicator, micro-control chip single-chip microcomputer, etc. are all designed in the A terminal (electric iron base), and the powerful steam control key, continuous steam control key and The button indicator lights and 220V heating chassis are all designed in the B terminal (the handle of the electric iron). According to the usual circuit design, 5 to 6 connecting wires are required to complete the 2-4 meter connecting wire, but with this circuit device design, only 3 wires are needed. The connection wire is completed, which greatly reduces the material cost; in terms of performance, because the connection wire needs to be bent and bent often during use, if the wire core is too thick and too large, the connection wire will be too hard, and the performance will not reach Meet the requirements; in terms of electrical performance, because the number of connecting wires is too large during the process of bending and twisting, it is easy to cause damage to the outermost curved connecting wires

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