Home » Motor Control » Page 4

Motor Control

What is Power Transistor?

What is Power Transistor? | Definition | Working | Applications: What is Power Transistor? – Power Transistors are now available in ratings suitable for motor control. This device is a 3-layer p-n-p (or n-p-n) structure, as shown in Fig. 11.5. This type of transistor is known as a bipolar junction transistor (BJT). Working: In normal …

What is Power Transistor? Read More »

Gate Turn Off Thyristor (GTO)

Gate Turn Off Thyristor (GTO): A Gate Turn Off Thyristor (GTO), unlike the SCR, has the additional capability that it can be turned off by injecting negative gate current pulse. This is because of its highly interdigitated gate emitter which permits the diversion of PNP collector current by the gate and thereby break up the …

Gate Turn Off Thyristor (GTO) Read More »

What is Silicon Controlled Rectifier (SCR)?

What is Silicon Controlled Rectifier (SCR)? | Construction and Working of SCR: What is Silicon Controlled Rectifier (SCR)? – This semiconductor switching device is also known as a thyristor. It is a 4-layer, 3-junction, bistable (ON and OFF) semiconductor switch. The terminal to the outer p-­layer is the anode, the terminal to the outer n-layer …

What is Silicon Controlled Rectifier (SCR)? Read More »

What is Semiconductor Diode?

What is Semiconductor Diode?: The Semiconductor Diode (Silicon Rectifier) described here in Fig 11.2(a) are based on the property of p-type and n-type materials in conjunction. An ideal diode presents zero impedance to current flow in one direction and infinite impedance in the opposite direction. A practical diode has a very low forward resistance and …

What is Semiconductor Diode? Read More »

Motor Control by Static Power Converters

Motor Control by Static Power Converters: Motor Control by Static Power Converters – Power electronics is a multidisciplinary technology that encompasses power semiconductor devices, converter circuits, electric machines, signal electronics, control theory, microcomputers, very-large scale integration (VLSI) circuits, computer-aided design techniques, etc. Electrical power is processed by power electronics to make it suitable for various …

Motor Control by Static Power Converters Read More »