Start Mechanism in Single Phase Induction Motor
The single-phase induction motor is not self-starting device. The main winding carries an alternating current when the motor is connected to a single-phase power supply. A pulsating magnetic field will...
View ArticleHow Split-Phase AC Induction Motor Works
The other name of split phase motor is an induction start/induction run motor. This motor has two windings : a start and a main winding. The start winding is made with fewer turns and smaller gauge,...
View ArticleLM2907 Motor Speed Control – Part 2
The following figure show us an alternative approach which gives proportional control. The charge pump integrator is shown in a feedback connection around the operational amplifier. For zero speed, the...
View ArticleLM2907 Motor Speed Control – Part 1
We can purchase DC motors with or without brushes with ac tachometer outputs already provided by the manufacturer. A very low cost speed control can be constructed with these motors in combination with...
View ArticleCapacitor Start AC Induction Motor
Modified split-phase motor with a capacitor in series with the start winding to provide a start “boost” is shown below. The capacitor start motor also has a centrifugal switch like the split-phase...
View ArticlePermanent Split Capacitor (Capacitor Run) AC Induction Motor
A permanent split capacitor (PSC) motor has a run type capacitor. This capacitor is permanently connected in series with the start winding. This will cause the start winding an auxiliary winding once...
View ArticleCapacitor Start/Capacitor Run Induction Motor
An induction motor is one of type of AC motor that is supplied by means of electromagnetic induction. This motor has some advantages like has high efficiency and can be used for lower full-load...
View ArticleShaded-Pole AC Induction Motor
A shaded-pole AC induction motor is one of type of AC induction motor that does not have start winding but has only one main winding. This type usually called “disposable motors because it better...
View ArticleF/V Converter in CLosed Loop Motor Speed Control System
Closed loop or servo system has the ability to stabilize the controlled plant at a specified operating condition. The plant, the controlled sub-system, can be any form of controllable system. In motor...
View ArticleAC Motor Braking with Diode
This is an AC motor brake circuit. This circuit is used to make the motor stop/decelerate faster (braking), more than just cutting the power of the ac power tool motor. Here is the schematic diagram...
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