Orange DIY LM555 Based Motor Speed Controller

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SKU: 1174664
  1. Input Voltage ( V ): 12 V DC
  2. Operating Current ( A ): 100mA 
  3. IC: NE555E
  4. Transistor: TIP122 

 255.00

(inc GST)

Out of stock - Join the waitlist to be emailed when this product becomes available

Brand: Orange
Category: Orange DIY Mini Project Kits

We use DC Motors in many systems in our day to day life. For example, CPU fans, fume extinguishers, toy cars etc. are all DC Motors that are operated by DC power supply. Most of the time we will have to adjust the speed of the motors as per our requirement.

A CPU Fan, for example, must be operated at high speed when the CPU is performing heavy tasks like games or video editing. But for normal usage like editing documents, the speed of the fan can be reduced. Although some systems have an automatic adjustment system for fan speed, not all systems possess this functionality. So, we will have to adjust the speed of the DC Motor ourselves occasionally.

In this circuit, the DC motor is operated by a 555 integrated circuit. TheIC 555 in this circuit is being operated in astable mode, which produces continuous HIGH and LOW pulses. In this mode, the 555 IC can be used as a pulse width modulator with a few small adjustments to the circuit. The frequency of operation of the circuit is provided by the passive parameters of resistances and capacitors attached to it.


Pinout:

  1. Pin 1 of 555 is connected to GND. Pins 8 and 4 are connected to +V
    Supply.
  2. Pins 6 and 2 are short and a 100nF Capacitor is connected between Pin
    2 and GND. The wiper pin of the POT is connected to Pin 3 of 555. Two
    Schottky diodes (1N5819) are connected to the other two pins of the
    POT as shown in the circuit diagram.
  3. The common point of the diodes is connected to Pin 2. Pin 7 is pulled
    high with the help of a 10KΩ Resistor. The Gate terminal of the MOSFET
    is connected to Pin 7 of 555. The motor is connected between +12V
    Supply and Drain of MOSFET while the Source of MOSFET is connected
    to GND.

Application:

  1. To control the speed of the motor efficiently.

Package Include:

1 x Orange DIY LM555 Based Motor Speed Controller

Input Supply Voltage (VDC)

12

Operating Current (A)

100mA

IC Chip

NE555E

Transistor

TIP122

Shipment Weight

0.08 kg

Shipment Dimensions

13 × 9 × 4 cm

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