The square wave generator of 555, R and C

Published:2011/6/13 21:10:00 Author:Borg | Keyword: square wave

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The triangular and square wave generator circuit (555)

Published:2011/6/13 21:09:00 Author:Borg | Keyword: triangular, square wave

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The changeable triangular wave generator (555)

Published:2011/6/13 21:08:00 Author:Borg | Keyword: changeable, triangular wave generator

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The simple linear sawtooth wave generator circuit composed of 555

Published:2011/6/14 4:09:00 Author:Borg | Keyword: sawtooth wave, generator

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The multiple wave outline generator of 555 (2)

Published:2011/6/13 21:04:00 Author:Borg | Keyword: multiple, wave outline

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The multiple wave outline generator of 555 (1)

Published:2011/6/13 21:03:00 Author:Borg | Keyword: multiple, wave outline generator

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The application circuit of M58485P

Published:2011/6/19 3:21:00 Author:Seven | Keyword: application circuit

The application circuit of M58485P   (View)

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The M58485P logic frame circuit

Published:2011/6/19 3:22:00 Author:Seven | Keyword: logic frame circuit

The M58485P logic frame circuit   (View)

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The 555 square wave and sawtooth wave generator

Published:2011/6/13 20:53:00 Author:Borg | Keyword: square wave, sawtooth wave

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The boosttrapping voltage sawtooth wave generator of 555

Published:2011/6/13 21:00:00 Author:Borg | Keyword: boosttrapping voltage, sawtooth wave

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The bootstrapping sawtooth wave generator circuit of 555

Published:2011/6/13 20:59:00 Author:Borg | Keyword: bootstrapping, sawtooth wave generator

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The high-voltage generator (555)

Published:2011/6/22 1:10:00 Author:Borg | Keyword: high-voltage generator

In the figure is the high-voltage generator circuit. This kind of circuit is used in conditions that need high-voltage and low-current, and it can generates high voltages of several thousand and dozens of thousands of volts. The circuit consists of the pulse generator, drive and high voltage transformer. The pulse generator is connected serially with VT1 by a 555 timer. As the buffer, VT1 separates high load resistance of IC1 and IC2 grid. The resistors of R1, R3, R2 and R4 adjust the output pulse frequency of ICI 3-pin.The pulse controls the ON/OFF action of VT3   (View)

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The DC passive high voltage generator

Published:2011/6/22 1:28:00 Author:Borg | Keyword: DC passive, high voltage

The figured DC passive high voltage generator is specially designed for the high voltage static electricity spraying equipment. The circuit is small-sized and low-power, and its output passive high voltage is stable and adjustable, its maximum output DC is 100,000v. It has functions of overloading protection self-stopping and self-recovering. Elements selecting: T1 is a 30～40W and 2×24V power supply transformer. T2 and T3 are the push transformer of the black-white TV. T4 is the separated line output transformer of 17 inch black-white TV. TV5 can be chosen as 3DDl5D, 3JL06 and so on. RP1 is the multi-turn potentiometer of 20K12.   (View)

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The vehicle battery inverter circuit

Published:2011/6/19 8:55:00 Author:Seven | Keyword: vehicle battery, inverter

The vehicle battery inverter circuit is shown in the figure.   (View)

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The MCl45027 typical application circuit (2)

Published:2011/6/19 9:57:00 Author:Seven | Keyword: typical application circuit

The MCl45027 typical application circuit (2) The range of external element values   (View)

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The MCl45027 typical application circuit (1)

Published:2011/6/19 8:53:00 Author:Seven | Keyword: typical application circuit

The MCl45027 typical application circuit (1)   (View)

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The time accumulation circuit

Published:2011/6/22 6:40:00 Author:qqtang | Keyword: time accumulation

In the figure is the time accumulation circuit. In the circuit, H1 and H2 are vibrations generated by the switch, when the switch of S1 is pressed, it generates a passive pulse and triggers HD14027, and its 1-pin (Q terminal) outputs a high LEV, and the LEV is added on the input terminal of the timer by H3, H4 and VT1, then the timing is starting. ICM7555 composes the multi-resonance oscillator, by changing the RP2, the oscillating frequency is adjusted, the output pulse of the 3-pin of ICM7555 is also added on the input terminal of H3, then the timer begins to time the pulses. When the timing is over, press S1, which generates the passive pulse and triggers HD14027.   (View)

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The MCl45027 pulse waveform and test circuit

Published:2011/6/19 10:00:00 Author:Seven | Keyword: waveform, test circuit

Figure: The MCl45027 pulse waveform and test circuit   (View)

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The MCl45027 logic frame circuit

Published:2011/6/19 10:03:00 Author:Seven | Keyword: logic frame circuit

The MCl45027 logic frame circuit   (View)

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The ultrasonic humidifier circuit

Published:2011/6/20 22:05:00 Author:Seven | Keyword: ultrasonic humidifier

The ultrasonic humidifier circuit is shown in the above figure.   (View)

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