Free Simple Circuit Diagram
To make a constant speed motor control we can use Closed loop (servo) control. Constant speed motor is a motor that has constant speed although the load is change, indeed when the electric supply voltage is also changed. This circuit uses tachometer to sense the actual speed to maintain the speed at a constant value. If the speed is slowing […]
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There are many applications that require stability in the operation, such as telecommunications, servos, and test equipment. They are using frequency-accurate sine-wave sources, but to find frequency-accurate sine-wave sources with satisfactory level of absolute accuracy and drift can be a problem, even if there are many such sine-wave oscillators are available. To get less drift and greater accuracy ws can […]
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To generate a system clock or auxiliary sleep clock in microcontrollers (µCs) and low-power instruments we usually use A 32kHz oscillator. A CMOS inverter (74HC04 or CD4049UB type) biased as a linear amplifier by connecting a large-valued resistor from the input to the output is one of usual implementation. The inverter circuits give us problems. To attain Supply currents fluctuate […]
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This muscular bio-stimulator circuit is small and portable. This circuit provides muscles’ invigoration and stimulation but in major it could be an aid in removing cellulite. To use this bio-stimulator we just put the electrodes to the skin at both ends of the chosen muscle and then rotate P1 knob slowly until we feel a mild itching sensation. WARNING: This […]
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