Showing posts with label pulse. Show all posts
Showing posts with label pulse. Show all posts

Tuesday, August 26, 2014

Build a Pulse Generator using Basic Operational Amplifier

How to build a pulse generator schema using operational amplifier, very basic, it is the schema stable multi vibrator or square wave oscillator. It uses a dual operational amplifier IC, one in 1458. The output frequency set by the value of R1 and C1. The calculation is Frequency = 1 / (2R1.C1.ln3)

The capacitor C1 1uF to change capacitance value by the frequency of 8 Hz, = 0.1uF 50Hz, 700Hz = 0.01uF, 0.001uF = 6kHz. In place of 1458 4558 may be used, LF353, etc.

 Pulse Generator using Basic Operational Amplifier Circuit Diagram

Pulse
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Tuesday, August 19, 2014

Inverter 5000W with PWM Pulse Width Modulator

Inverter 5000W with PWM
Inverter

This inverter uses PWM (Pulse Width Modulator) with type IC SG3524. IC serves as a oscillator 50Hz, as a regulator of the desired output voltage. Input power ranging from 250W up to 5000W output and has. Following a series INVERTER 5000W with PWM (Pulse Width Modulator).
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Sunday, August 17, 2014

Pulse generator circuit with Logic Gate

Pulse generator circuit above is a pulse generator that uses logic gates. There are so many types and variations that can generate a series of pulses.
The simplest is the use of transistors or often called a flip-flop. There also are using integrated circuit such as IC 555. Theres more to exploit the resonance of the capacitor and inductor relationship as oscillators. To be sure whatever form and whatever the circuit components used must be able to generate electric waves which have a peak voltage (logic 1) and valleys (logic 0) is continuous.



Any variation of pulse generator circuit design has advantages and disadvantages of each, just how your decision for the appropriate circuit. For example to create a clock signal for a simple utility that you can only take advantage of the transistor but if you need a more accurate clock signal and form a perfect balance you can use IC Astable or logic gates. Or perhaps you need a signal with very high frequency (up to MHz) you can use a combination of inductor, resistor and capacitor.

Frequency value of the pulse generator circuit gate above is determined by the value kapaitor C2, R2, R3 and VR2. The greater the value of these components will lower the frequency and vice versa. Actually nothing is difficult to make a series of pulse generators, almost all time-based series is utilizing the nature of the charge and discharge capacitor. Therefore, like any form of variations in pulse generator circuit, always have a larger capacitor value will make the frequency produced smaller or longer periods of time, sedangkaan smaller capacitor values ​​will result in greater output frequency.
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