Figure 1 The circuit was designed to create a touch switch that can be used for ON/OFF functions in modern technology. BC547 – NPN small signal trans...
The picture shows the basic LM-1496 mixer circuit. In the figure, RF and carrier input are connected together to form a single-ended structure. Respect...
Description. NE555 is an IC which is widely used in timers and control circuits. A circuit for independent testing this IC is given here. Here the NE55...
As shown in the picture 2-10, the circuit is composed of a four-two input terminal, a non-pin CD4011 and a CMOS-type 555, therefore, no matter in a sta...
Description: A 555 pulse generator circuit with a difference, the initial pulse is tailored by additional circuitry to match the duration of subsequent...
This article describes the 555 based Reset Generator CIRCUIT (LM555N). The content is very simple, very helpful. Components in this article can help yo...
Figure 1 The circuit was designed to produce a universal infrared switch with a single channel and ON/OFF feature to operate in 36 kHz to 38 kHz in the...
The defibrillator ordinary used for arrhythmia patient is bulky, heavy and inconvenient to carry. This circuit adopts 555 circuit, it is safe and relia...
As shown in the figure 3-4, as soon as the voltage VDD is connected, the oscillator starts up. At the beginning of being powered, as the voltage can no...
As shown in the picture 3-14, a 555, R1, RP1,C1 and other parts constitute a controllable audio oscillator, the frequency ofparameter in the picture ra...
555 Variable Frequency Square Wave Generator This simple 555 Variable Frequency Square Wave Generator produces a variable frequency output of 2800Hz to...
This article describes the Driving Relay with 555 IC (NE555). The content is very simple, very helpful. Components in this article can help you underst...
555 Timer As An A/D Converter[more] : Measure voltages accurately with a microcontroller using this simple circuit. Includes sample program for the Par...
A CMOS timer generates true square waves because, unlike the bipolar 555, its output swings from rail to rail. The component values shown give a freque...
Description: This is a Curtain Control Circuit. This circuit based on the 555 Timer IC. This hybrid circuit uses a mixture of transistors, an IC and a ...
K-type thermocouple is placed in insulation terminal block and the ambient temperature of the thermocouple is continuously controlled by 1N914 diode. D...
555 timer circuits Using this dc motor speed controller circuit designed using 555 timer circuit can be designed a small drill project. Q1, Q2 and U2 f...
As shown, the sawtooth generator is made up by the 555 monostable timing circuit and feedback bootstrap circuit.The IC2 (LM741) operational amplifier i...
(A):Model A/T (L):Model L.H.D (M):Model M/T(R):Model R.H.D (AA):Model A/T with A.S.C.D (AE): Model A/T without A.S.C.D(CT):the model with a catalyst(EC...
Front and rear windscreen of 70 light-duty off-road vehicles have wiper washing device, and intermittent relay, 103 and 109. The mist grid of Wiper swi...
The circuit is shown as the chart 6-2, the delay circuit is a trigger delay circuit with integrator. CA3140 is a BIMOS single-supply op amp, itcan stil...
TEANA A33-EL Automatic Speed Control Device Schematic Diagram and Circuit...
As shown in Figure 7-10, the voltage detection circuit uses 555 as the core to form in bistable mode. Usually, the pin 6 of 555 (threshold level side)i...
After receiving the optical signal, this car will move straight forward, at the same time, it has red and green alternately flashing. After one minute,...
555 timer circuits This door open alarm electronic project is designed using an linear hall effect device and a 555 timer circuit. This door open alarm...
As shown, 555 and R1, C1 etc. compose a monostable delay circuit, input square wave signal or the square wave signal after the shaping of Schmitt trigg...
As shown in Figure 10-3, IC1 and R1 ~ R3, RP1 ~ RP3 form overvoltage, undervoltage sampling and R-S trigger circuit, when the mains voltage is below 17...
As shown in the figure 10-10, the over-current protection circuit is made as the core of 555 which is connected into R-S trigger mode. In the figure, M...
As shown, 555 and R2, C1, VT1 etc. make up a monostable trigger circuit, the difference from the general trigger is thatVT1,R1,R2,R3 make up a constant...
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