CD4013 integrated circuit signal transmission characteristics and application circuit (multi-ground control light switch)

Simple multi-control switch circuit CD4013

The circuit is used as an energy-saving lamp. When going upstairs, press AN1 and H lights up. Press IN when you enter the room, and H will go out. It differs from the monostable energy-saving lamp in that the time from pressing AN1 to pressing ANn can be arbitrary and is not limited by time and space.

Control schematic:

Application control circuit:

CD4013 integrated circuit signal transmission characteristics 1:

When the CD4013 pin 3 (CK) is input high, the first pin (Q) outputs a high level.

When the 11th pin (CK) of the CD4013 is input high, the 13th pin (Q) outputs a high level.

CD4013 integrated circuit signal transmission characteristics 2:

The 4013 is an integrated trigger chip with two independent D flip-flops inside. Each flip-flop has a set terminal (SET), a reset terminal (RESET), a clock terminal (CLOCK), a data input terminal (DAT A), and two output terminals Q and Q/ terminals.

Voltage range: 3-18V

Function description:

When R is 1, and S is 0, regardless of the state of D and CL (clock), the output Q must be 0, so R can be called the reset terminal. When S is 1, and R is 0, the output Q must be 1, and s is called the set end.

When R and S are both 0, Q operates when the pulse rising edge of the CP end comes, specifically Q=D, that is, if D is 1, Q is also 1, and if D is 0, Q is also 0.

Press S1, R=1, circuit reset, Q terminal output 0, press S2, S=1, the circuit is set, Q terminal output 1. When 1, the triode is turned on, the relay is energized. After pressing S2, the relay remains in the sink state and is released only when the S1 relay contact is pressed. This circuit is a basic RS trigger.

When S1 is not pressed, the reset terminal R=O, otherwise if R=l, the circuit will forcibly reset Q=0, the charged charge will discharge to the Q terminal through R2, and finally make R=0, which is the steady state of the circuit. . When S1 is pressed, the potential of the CP terminal is “O to 1, and its rising edge triggers the circuit to transmit the data of the D terminal. Because D=1, Q=1, this is the transient state. The high potential of the Q terminal is charged to C through R2. When the voltage across c reaches the reset level, then R=1, the circuit is reset, and the Q terminal becomes low level. 0'. The transient state ends and the circuit returns to the steady state. The above figure acts as the corridor light delay light-off line. When steady state, the Q terminal is low, the triode is cut off, the relay is not working, the bulb is not bright. When S1 is pressed, the circuit enters the temporary steady state. Q=1, the triode is saturated and the relay is energized, and its normally open When the contact is closed, the ladder light is turned on, and the light is turned on. After the temporary steady state is over, the light is automatically turned off. The temporary steady-state time is the time when the bulb is lit, which is determined by the parameters of R2 and C.

Set the Q end of the instantaneous valve after the power is turned on to the high level, the high level is charged to C2 through RP2, when the voltage of C2 rises to the reset level. Q terminal is low level, C2 is discharged to Q terminal through VD2. When Q terminal is low level, Q/ is the inverting output terminal of Q, so Q\ is high level, and the high level passes RP1 direction. C1 charging. When the voltage at c1 rises to the set level, the circuit sets, Q goes high, Q goes low, the high level of Q is charged to c2, and the low level of Q causes c1 to discharge to it. The loop alternates between high and low levels at the Q and Q terminals, forming an oscillation. Since the output terminals Q and Q of the circuit do not have a stable state, the circuit is called an unsteady oscillator: the oscillating signal at the Q terminal is applied to the base of the triode to amplify, pushing the speaker to emit a loud audio call: the oscillation frequency is RP1. RP2. C1, C2 decision is therefore also called audio signal generator

The AC 220V voltage is supplied with +12V for the light control circuit and the execution circuit after VD1~VD4 rectification, R1 current limit, C1 filtering and VS voltage regulation. During the day, RG1 and RG2 are exposed to light and are in a low-resistance state. The S1 end of the IC is low level, the R1 terminal is high level, the 1 terminal is low level, the VT is in the off state, K is in the release state, and the illumination EL is not bright. At night, RG1 and RG2 are caused by no light, or the S1 end of the IC becomes high level, the R1 terminal becomes a low level, the Q1 terminal outputs a high level, the VT saturation is turned on, and the K is energized and sucked, which is normally open. The contacts are turned on and the EL is lit. After dawn, the resistance of RG1 and RG2 decreases, and the Q1 end of the IC outputs a low level again, VT is cut off, K is released, and EL is extinguished.