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This Processor Fan Control circuit is intended to be used with relatively old PCs, since more recent models generally have a fan control circuit already integrated into the motherboard. These controllers ensure that the amount of cooling is increased if the processor becomes too warm and decreased if the processor temperature is relatively low.
A mini-drill machine is always needed in drilling the printed circuit board. It is usually powered by batteries that limit the drill’s capacity.
Using a power supply adaptor with a speed regulator like the one featured here can certainly improve the performance of the drill.
The speed regulator can maintain the speed of the drill no matter what load is encountered by the drill.
This triac-based dc motor speed control is designed for controlling the speed of small household motors like drill machines. The speed of the motor can be controlled by changing the setting of P1. The setting of P1 determines the phase of the trigger pulse that fires the triac.
The circuit incorporates a self-stabilizing technique that maintains the speed of the motor even when it is loaded.
This PWM Controller circuit is ideal for controlling small motors with 2A maximum current consumption. For higher currents you need additional cooling for T2 and increase C2 value. This pwm motor controller is using the fact that the small dc motor has the revolution speed depending on the power supply voltage.
