Simple multi-control switching circuit CD4013
This circuit is used as the use of energy saving lamps: When the upper floor is on, press AN1 and h. After entering the house, press ANN again, then H is off. It is different from a single steady energy-saving lamp that can be free from pressing AN1 to pressing ANN, and is not limited by time and space.
Control schematic:
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Application control circuit:
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CD4013 Integrated Circuit Signal Transfer Characteristics 1:
When the CD4013 of the third foot (CK) end is input at a high level, the first foot (Q) is output at a high level.
When the CD4013, the 11th foot (CK) end is input, the 13th foot (Q) is output at a high level.
CD4013 Integrated Circuit Signal Transfer Characteristics 2:
4013 is an integrated trigger chip with two independent D triggers inside. Each trigger has a set end (SET), a reset, a clock (Clock), a data input (DAT A), two outputs q, and q / ends.
Voltage range: 3-18V
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Function Description:
When R is 1, S is 0, regardless of the D and CL (clock), the output Q must be 0, so R can be referred to as a reset. When the S is 1, R is 0, the output Q must be 1, and the S is called a set end.
When R, S is 0, Q is active when the pulse rises in the CP end, specifically Q = D, that is, if D is 1, q is 1, if D is 0, q is 0.
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Press S1, R = 1, circuit reset, Q-terminal output 0, press S2, S = 1, circuit setting, Q-terminal output 1. Tripathy is turned on, the relay is electrically active. After the S2 is pressed, the relay always keeps the suction and state, only the S1 relay contact is released. This circuit is a basic RS trigger.
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When S1 is not pressed, the reset end R = O, otherwise if r = l, the circuit will force the reset Q = 0, and the charge charge is discharged to the Q terminal through R2, and finally R = 0, this is the steady state of the circuit. . When the S1, the CP end potential is transmitted from "O to 1, and its rising) is transmitted along the D-terminal transmitting the D-terminal. Therefore, q = 1, this is the temporary steady state. Q-terminal high potential to charge through R2. When the voltage of the C reaches the reset level. R = 1, the circuit reset, the Q terminal becomes low? 0 '. The temporary state is ended, the circuit reply to steady state. The above picture shows the light line When steady state, the Q terminal is low, the triode is closed, the relay does not work, the bulb does not light, the circuit is temporarily steady. Q = 1, triode saturation, relay, the relay is electrified The contacts are bonded to the ladder light, the lamp is lit. After the temporary state, the lamp is automatically extinguished. The temporary steady time is the time of the bulb light, determined by the parameters of R2 and C.
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The instant valve Q terminal is provided after the power is turned on, and the high level is charged to C2 via RP2, and when the C2 terminal voltage rises to the reset level. The Q terminal becomes a low level, and C2 is discharged to the Q terminal via the VD2 When the Q terminal is low, the q \ is high, the high level is passed through RP1. C1 charging. When the C1 terminal voltage rises to the set level, the number of circuits is high, Q becomes low, and the high level of the Q end is charged, and the low level of the Q terminal makes C1 to discharge it, so The cycle is alternately at Q and Q, forming oscillation. The circuit called no steady-state oscillator: Q-terminal oscillator signal is applied to the base magnification of the triode, and the oscillation frequency is pushed by the oscillator frequency from RP1. RP2. C1, C2 determine therefore also referred to as an audio signal generator
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The AC 220V voltage is rectified by VD1 to VD4, R1 current flow, C1 filtering and VS regulation, provides + 12V operating voltage for optical control circuits and execution circuits. The day, RG1 and RG2 are illuminated by light irradiation, the S1 end of the IC is low, the R1 end is high, the 1-terminal output low, the VT is in the off state, K is in the release state, the lighting EL does not Bright. On the night, RG1 and RG2 were irradiated with no light or so that the S1 end of the IC became high, the R1 end became low, the Q1 end output high, Vt saturated, K-powered suction, which normally opened The contact is turned on, and EL is lit. After the dawn, the RG1 and RG2 resistance decreased, and the Q1 end of IC outputs low, Vt cutoff, K release, EL extinguish. , Reading the full text, the technology area
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