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Line operated thyristor control time delay – Circuit Schematic
Line operated thyristor control time delay
This circuit uses a CA3059 or CA3079 zero-voltage switch to control turn-on time of a triac. The delay between switch closure and turn-on is set by the values o...
Time delay circuit using a UJT – Circuit Schematic
Time delay circuit using a UJT
Time delay circuit using a UJT. Maximum time delay is set by the 10M pot. Time delay can be set from less than a second to approximately 2. 5 minutes (courtesy ...
24 hour clock without the 1 hertz reference circuitry – Circuit Schematic
24 hour clock without the 1 hertz reference circuitry
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DEFROST TIMER CIRCUITS SCHEMATIC DIAGRAM – Circuit Schematic
DEFROST TIMER CIRCUITS SCHEMATIC DIAGRAM
The job of this timer is to disconnect thecompressor circuit and connect a resistive heatingelement located near the evaporator atregular time intervals. The de...
Touch Switch And Delay Circuit – Circuit Schematic
Touch Switch And Delay Circuit
This is a simple touch switch circuit, the 555 timer is configured as a one shot multivibrator that is triggered by touching the touch terminal. In this monosta...
Long Interval RC Timer Using Op-Amp – Circuit Schematic
Long Interval RC Timer Using Op-Amp
With the help of high gain high impedance operational amplifier, we can build a long time delay with resistor-capacitor (RC) circuit since it allow high.....
CMOS 4011 Long Delay Timer – Circuit Schematic
CMOS 4011 Long Delay Timer
A very long time constant is provided by R1 and C1. C1 discharges and the near zero voltage at its positive lead is applied to the high impedance inputs of the....
The time delay circuit diagram composed of transistor – Circuit Schematic
The time delay circuit diagram composed of transistor
It can set delay time according to the voltage Us and resistor R. In the circuit, S1 is the the discharge switch of capacitor C. When the switch S1 is closed, t...
The time delay circuit diagram composed of transistor – Circuit Schematic
The time delay circuit diagram composed of transistor
It can set delay time according to the voltage Us and resistor R. In the circuit, S1 is the the discharge switch of capacitor C. When the switch S1 is closed, t...
The switch shut off time delay circuit diagram – Circuit Schematic
The switch shut off time delay circuit diagram
The switch shut off time delay circuit is shown as below. The switch shut off time delay circuit is composed of the timer, optocouplers, bridge SCR, SCR AC swit...
The switch shut off time delay circuit diagram – Circuit Schematic
The switch shut off time delay circuit diagram
The switch shut off time delay circuit is shown as below. The switch shut off time delay circuit is composed of the timer, optocouplers, bridge SCR, SCR AC swit...
TheCircuit of One-hour Timing Circuit Using LM122 – Circuit Schematic
TheCircuit of One-hour Timing Circuit Using LM122
In this figure S1 can start timing and when the timer starts, turning this switch has no effect.S2 is the OFF switch in the middle and turning this switch can m...
TheCircuit of One-hour Timing Circuit Using LM122 – Circuit Schematic
TheCircuit of One-hour Timing Circuit Using LM122
In this figure S1 can start timing and when the timer starts, turning this switch has no effect.S2 is the OFF switch in the middle and turning this switch can m...
Preset Outage Timer of Electric Cooker Remote_Control – Circuit Schematic
Preset Outage Timer of Electric Cooker Remote_Control
As shown in the figure is a preset outage timer of electric cooker circuit. Time of the timing circuit ranges from 1 hour to 12 hours, which can be regulated by...
Preset Outage Timer of Electric Cooker Remote_Control – Circuit Schematic
Preset Outage Timer of Electric Cooker Remote_Control
As shown in the figure is a preset outage timer of electric cooker circuit. Time of the timing circuit ranges from 1 hour to 12 hours, which can be regulated by...
Improved one-shot timer circuit composed of 2 PUT – Circuit Schematic
Improved one-shot timer circuit composed of 2 PUT
Figure 1 is an improved trigger timing circuit composed of 2 PUT. If you add the set signal, the circuit will be set, transistor VT1 turn to the conduction stat...
Improved one-shot timer circuit composed of 2 PUT – Circuit Schematic
Improved one-shot timer circuit composed of 2 PUT
Figure 1 is an improved trigger timing circuit composed of 2 PUT. If you add the set signal, the circuit will be set, transistor VT1 turn to the conduction stat...
Timer automatic electric rice cooker circuit diagram – Circuit Schematic
Timer automatic electric rice cooker circuit diagram
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Timer automatic electric rice cooker circuit diagram – Circuit Schematic
Timer automatic electric rice cooker circuit diagram
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Simple telephone time lock circuit diagram – Circuit Schematic
Simple telephone time lock circuit diagram
Simple telephone time lock circuit is shown in the above picture. In the circuit diagram, BG1 and BG2 are electronic switches controlled by IC NE555. When the t...