Frequency Multiplier using PLL 565: Fig. 2.128 shows the block diagram for a frequency multiplier using PLL 565. Here , a divide by N network is inserted between the VCO output (pin 4) and the…
IC 565 PLL | Pin Diagram | Block Diagram: IC 565 PLL is available in a 14 pin DIP package and 10 pin metal can package. Fig. 2.124 shows 14-pin package configuration for IC 565…
Important Definition of Phase Locked Loop (PLL): Some Important Definition of Phase Locked Loop PLL are as follows : Lock Range: When PLL is in lock, it can track frequency changes in the incoming signal.…
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 Q1Â 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…
