Static Amplitude Comparator: If the two input signals are S1 and S2 the amplitude comparator gives positive (yes) output only if S2/S1 ≤ K (Fig. (11.1)), S1 is the operating quantity…
Zero Crossing Detector Circuit: Zero Crossing Detector Circuit basically involves the sine to square wave conversion by a level detector circuit followed by a pulse circuit, which consists of one…
Optocoupler Circuit Operation: An Optocoupler Circuit Operation (optoelectronic coupler) is essentially a photo-transistor and an LED combined in one package. Figure 20-35(a) and (b) shows the typical circuit and terminal…
Silicon Bilateral Switch: It might be convenient to think of a Silicon Bilateral Switch (SBS) as an SUS with a gate terminal, or as a low-current TRIAC. However, the SBS is…
Silicon Unilateral Switch: The Silicon Unilateral Switch (SUS), also known as a four layer diode and as a Schokley diode, can be treated as a low-current SCR without a gate…
Energy Conservation in Electrical Drives Articles: Application of Variable Speed Drives : Several drives are driven at constant speeds by induction or synchronous motors, although operation of Application of Variable Speed…
Synchronous Motor and Brushless DC Motor Drives Articles: Brushless DC Motor Drives (Trapezoidal PMAC): The cross section of a 3-phase 2 pole Brushless DC Motor Drives is shown in Fig.…
Induction Motor Drives Articles: Braking of Induction Motor Drive : Following methods are employed for Braking of Induction Motor Drive: Regenerative braking Plugging or reverse ... Braking of Single Phase…