As the figure 17-16 shown, the timing circuit is composed of two branches of 555, IC1 forms a timer, IC2 is a second signal metronome. AN1 is the timer...
When the microcontroller hangs due to a spike, EMI or RFI etc. the 7555 will reset the uC, if proper power supply design is done above circuit can also...
As shown in the figure 11-33, the timing circuit still uses inexpensive 838 calculator as display terminal, it is composed of second clock generator an...
Figure 1 The circuit was designed sensitive enough to trigger and activate the alarm upon sensing wetness, moisture or dampness on its probes. 555 Time...
This article introduces the Sawtooth Wave Signal Generator Using 555 IC (NE555). The content is very simple, but very useful. An understanding of the c...
The Uninterruptible Power Supply is commonly used to convert the battery voltage to 220V power supply in the power cut. The monitor can monitor battery...
The monostable delay circuit is composed of IC4(555) and R3, RP2, C4. Within power rationing quota, IC2, VT1 all cut off, the 555's set terminal 2 foot...
The following figure is a tuning input circuit which achieves tuning function by variable voltage capacitance diode (varactor). The total tuning capaci...
As shown in the figure 11-26, the firing circuit is composed of a double time base integrated block 556 and some resistor capacitor components. It can ...
Circuit has two outputs which are named the UA1 and UA2. The former one is called high-pass filter output, and the later one is called band-pass filter...
Specifications The 555 Stepper Pulse Generator kit will help you with the pulse required to drive your favorite DC Servo Motor application. This kit us...
The working principle of the circuit (2)The car brake lamp fault monitor consists of resistors R1-R3, diodes VD1 and VD2, NOR gate integrated circuit I...
An excellent tone burst generator can be made using 556 Dual Timer. We can connect the first half as a one-shot and the second half as an oscillator. T...
The monostable timing circuit is composed of IC1(555) and RP1, R1, C1, the monostable short stabilization time td=1.1(R1+RP1)C1, it is fixed on 60s by ...
This is a sound generator based on timer IC555. A flip-flop circuit is included, so this circuit will give sound output and blinking LED. Components: R...
(A):Type A (B):Type B (C):Type L.H.D (D)Type R.H.D (KH):the type of Hongkong hardtop (NK):except the type of Hongkong hardtop (SP):the model with rear ...
As shown in picture (C), after adding the conduction diode D1 and D2, the charge and discharge time constantwill be separately adjusted. If R1=R2, the ...
As shown in the picture 5-36, this linear voltage/frequency converter is a practical voltage/frequency converter. When input voltage is strengthened, v...
This article describes the 9VDC to 5 VDC circuit diagram using 555 timer IC (74OL6010). The content is very simple, very helpful. Components in this ar...
Description The circuit below illustrates generating a single positive pulse which is delayed relative to the trigger input time. The circuit is simila...
When it comes undervoltage or overvoltage state, D2 or D1 turns on, IC's 2 foot and 6 foot are high level(2/3 VDD), then 555 circuit is turned reset, 3...
555 Timer Operating Modes The 555 has three main operating modes, Monostable, Astable, and Bistable. Each mode represents a different type of circuit t...
The integrated circuit IC1 is a piece of 555 timing circuit, connected to monostable circuit here. Usually as there's no induced voltage in the port of...
The medium-sized bus of Coster (or Cruise) produced by Toyota takes a large share of Chinese market, of which the ones imported in 80s are gasoline car...
This circuit is for driving a neon lamp from a 9-V supply. The 555 generates an ac signal (stepped up by T1), and lights the neon bulb. T1 is any small...
An Overview of the 555 Timer The 555 Integrated Circuit (IC) is an easy to use timer that has many applications. It is widely used in electronic circui...
TMP87CH33N is the single-chip microcomputer integrated circuit produced by Toshiba, it is widely used in Toshiba, Konka series of movement and assembly...
Figure 1 The circuit was designed to produce a circuit that will alarm a sleeping person to prevent snoring by using a vibrator instead of an audio ale...
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