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Oct 30, 2018 A simple PWM motor speed control circuit with diagram and schematic for low power dc motors. This easy to make pwm dc motor controller is made using IC CD40106B.
This control circuit is ideal for the accurate control of DC motors as well as other applications like lighting levels and small heaters etc. The circuit converts a DC voltage into series of pulses, such that the pulse duration is directly proportion to the value of the DC voltage. The great advantage of such a circuit is that almost no power is lost in the control circuit.
This circuit protects against overload and short circuit, PWM range can be adjusted from 0-100%, PWM frequency is 100HZ-5KHZ adjustable. Operation voltage from +8V~ 35V, minimum current consumption is about 35mA. Maximum current can go up to 6.5A. Efficiency better than 90% at full load.
The functions of three trim pots are as follow:
VR1: setting the minimum output voltage
VR3: setting the maximum output voltage
VR2: setting the output frequency.
VR1: setting the minimum output voltage
VR3: setting the maximum output voltage
VR2: setting the output frequency.
Read More Source:
http://home.att.net/~wzmicro/3525.html
Thank you.
The SG3525 PWM module is a PWM controller with adjustable frequency and adjustable duty cycle. SKU: LCT19897285725,YXE35928013365 |
The SG3525 PWM controller module features adjustable frequency and duty cycle, which makes it ideal for all types of applications, including switching power supplies, motor control applications and others.
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