Do More

Single phase capacitor motors are widely used in household a ppliances such as water pump , washing machine, freezer, air condit ioning . Simple construction with small resources and working with electricity supply voltage 220 V, therefore ma king the capacitor motor is widely used in household appliances. Stator winding consists of the main winding terminals U1-U2 notation, with the notation and auxiliary winding terminals Z1-Z2-mesh nets connected to the terminals L1 and U1, and the neutral wire connected to the terminal N U2. Capacitors work function to the main winding phase angle difference with the auxiliary winding approaching 90 ° . Setting the direction of motor rotation can be done with a capacitor (see figure): • To produce rotation to the left (counterclockwise) working capacitor CB connected to the terminals U1 Z1 and Z2 and the terminal is coupled with the terminal. • Round to the right (clockwise) a capacitor connected to the terminal work Z1 and Z2 terminals U1 and U1...

A simple electric motor homemade, easy to make. 1. 1 meter of wire 2. magnet 3. one battery AA or AAA 4. Improvisation

The forward reverse motor control is used i a system where forward and backward or upward and downward movement in the operation are needed. An example of which are shown in figures below (a) and (b). Figure below (a) shows forward and backward lateral movement of an overhead crane driven by motor M. Figure below (b) shows a downward and upward movement of a load is driven by motor lifter M. (a) Lateral movement of an overhead crane driven by a motor. (b) Vertical movement of a lift by a motor. Control Operation The clockwise (forward) and counterclockwise (reverse) rotation of a motor can be caused by interchanging the connection of any of the two of its three terminals. Figures (c) and (d) below will show how this can be done. Contractors F and R are interlocked. It means that if the contacts (1-2, 3-4, 5-6) of contractor R can not be closed. On the other hand if the contacts (1-2, 3-4, 5-6) of contractor R are closed, contacts (1-2, 3-4, 5-6) of contractor F can not be closed. Not...

Parts Part Total Qty. Description Substitutions R1, R2 ,R3, R4 4 1K 1/4W Resistor D1, D2, D3, D4 4 1N4002 Silicon Diode Q1, Q2, Q3, Q4 4 TIP31 NPN Transistor (See Notes) TIP41, 2N3055 U1 1 4070 CMOS XOR Integrated Circuit U2 1 4027 CMOS Flip-Flop S1 1 SPDT Switch MISC 1 Case, Board, Wire, Stepper Motor You should be able to substitute any standard (2N3055, etc.) power transistor for Q1-Q4. Every time the STEP line is pulsed, the motor moves one step. S1 changes the motors direction.

Simple Stepper Motor Controller Circuit diagram. Stepper motors are available in several versions and sizes with a variety of operating voltages. The advantage of this general-purpose controller is that is can be used with a wide range of operating voltages, from approximately 5 V to 18 V. It can drive the motor with a peak voltage equal to half the supply voltage, so it can easily handle stepper motors designed for voltages between 2.5 V and 9 V. The circuit can also supply motor currents up to 3.5 A, which means it can be used to drive relatively large motors. The circuit is also short-circuit proof and has built-in over temperature protection. Two signals are required for driving a stepper motor. In logical terms, they constitute a Grey code, which means they are two square-wave signals with the same frequency but a constant phase difference of 90 degrees. IC1 generates a square-wave signal with a frequency that can be set using potentiometer P1.  This frequency determines the ...

Stepper motors are brushless DC motors which can move in discrete steps thanks to the special coil arrangement inside. They are very popular in DIY and industry projects which require accurate mechanical movement control. In this SoloPCB project, we are building a dual stepper motor driver shield based on two Allegro A4988 ICs which can supply up to 35V and 2A and provide overcurrent and thermal protection. [ ]

A simple DC motor controller circuit using NE555 is shown here. Many DC motor speed control circuits have been published here but this is the first one using NE555 timer IC. In addition to controlling the motors speed its direction of rotation can be also changed using this circuit. A PWM circuit based on timer NE555 is the heart of this circuit. NE555 is wired as an astable multivibrator whose duty cycle can be adjusted by varying the POT R1. The output of IC1 is coupled to the base of transistor Q1 which drives the motor according to the PWM signal available at its base. Higher the duty cycle the average voltage across motor will be high which results in higher motor speed and vice versa. Change of DC motor direction is attained using the DPDT switch S1 which on application just toggles the polarity applied to the motor. The circuit can be assembled on a Vero board or PCB. Use 12V DC for powering the IC. Vm is the power supply for motor and its value depends on the motors voltage rat...

                                        Permanent magnet type DC motor                                         Permanent magnet type DC motor                                        Permanent magnet type DC motor                               Permanent magnet type DC motor (back side )                           Permanent magnet type DC motor (back side )                          Permanent magnet type DC motor (back side )                   ...

We all know what a motor is and what it does. The simplest way to run a motor is to just connect it to a power source. For a DC motor, that would mean, just connecting the motor to the DC voltage that the motor was rated for (or less). But, can you control the speed? Yes. The simplest method is to control the speed of the motor by controlling the voltage the motor runs off. Imagine we have a 12V motor. If you run it off 12V, you get maximum speed (you can get more at higher voltage, but let's not go over rated specifications!). So, simple logic dictates that as we decrease the voltage to the motor, the speed must decrease. You can use a simple LM317 regulator to adjust the voltage to the motor and thus the speed. But, this method of speed control has one huge disadvantage - inefficiency when using a linear regulator (and you may find the motor not running at all at lower voltages). Let's talk about the inefficiency. If we use a linear regulator to give 6V output from 12V input,...