Phase Locked Loop Working Principle: A Phase Locked Loop Working is basically a closed loop system designed to lock the output frequency and phase to the frequency and phase of an input signal. It is…
Foldback Current Limiting Circuit: The disadvantage of constant current limit is relatively large power dissipation in the series pass transistor when the load terminals are shorted. Thus a large power rating transistor is required. The…
Constant Current Limiting Circuit: A block of series regulation using simple Constant Current Limiting Circuit is shown in the Fig. 2.119. It is also called short circuit protection circuit as it provides protection against short…
Protection Circuits in Regulators: Protection Circuits in Regulators- The series regulator using transistors has no short circuit protection. If the load terminals are shorted accidentally then, Large amount of load current will flow. The pass…
Negative Voltage Regulator: Connections for getting negative voltage regulator are shown in Fig. 2.116. An external PNP transistor, Q1 is connected. Resistances can be from 1 kΩ to 10 kΩ. If magnitude of -Vi is less…
Positive High Voltage High Current Regulator: Positive High Voltage High Current Regulator - For this type, output voltage from +7V to +37V and load current IL > 150 mA. For this a external transistor Q1 is…
Basic Positive High Voltage Regulator: The Basic Positive High Voltage Regulator is shown in Fig. 2.114 For this type, output voltage varies from +7V to +37V and IL ≤ 150 mA. The non-inverting terminal connected…
Low Voltage High Current Regulator: Fig. 2.113 shows the Low Voltage High Current Regulator Circuit. Output voltage from +2 to +7 V and load current can be more than 150 mA. For this one transistor…
Basic Low Voltage Regulator using IC 723: Fig. 2.112 shows the Basic Low Voltage Regulator using IC 723. The resistor, Rsc is connected between CL and CS pins. The current limit transistor remains non-conductive unless drops…
IC 723 Voltage Regulator: The popular general purpose precision regulator is IC 723. It is a monolithic linear integrated circuit in different physical packages. The pin diagram of IC 723 Voltage Regulator along with the…
