Table of Contents
How does IC 7805 works?
For 7805 IC, it is +5V DC regulated power supply. This regulator IC also adds a provision for a heat sink. The input voltage to this voltage regulator can be up to 35V, and this IC can give a constant 5V for any value of input less than or equal to 35V which is the threshold limit.
How many pins does an IC 723 voltage regulator have?
It consists of a voltage reference source (Pin 6), an error amplifier with its inverting input on pin 4 and non-inverting input on pin 5, a series pass transistor (pins 10 and 11), and a current limiting transistor on pins 2 and 3.
How 723 regulator can be used as a high voltage regulator?
The 723 voltage regulator is commonly used for series voltage regulator applications. It can be used as both positive and negative voltage regulator. It has an ability to provide up to 150 mA of current to the load, but this can be increased more than 10A by using power transistors.
What is the circuit arrangement of a 7805 IC?
7805 Voltage Regulator, a member of 78xx series of fixed linear voltage regulators used to maintain such fluctuations, is a popular voltage regulator integrated circuit (IC). The xx in 78xx indicates the output voltage it provides. 7805 IC provides +5 volts regulated power supply with provisions to add a heat sink.
How does LM317 voltage regulator work?
The LM317 device is an adjustable three-terminal positive-voltage regulator capable of supplying more than 1.5 A over an output-voltage range of 1.25 V to 37 V. It requires only two external resistors to set the output voltage. The device features a typical line regulation of 0.01% and typical load regulation of 0.1%.
What is the output current of LM723?
The LM723 is the adjustable voltage regulator IC designed for series regulator application, with a current output of 150mA without external pass transistor.
How to use LM723 as a voltage regulator?
Use LM723 as a voltage regulator designed primarily for series regulator applications. By itself, it will supply output currents up to 150 mA. So need to use two transistors 2N3055 for boost up current to 5A. There are two circuits to learn.
What is the working principle of LM723?
LM723 Working Principle: An input voltage is applied to the PIN12 of LM723 to get a constant and regulated output voltage at Pin6. This voltage is then fed back by connecting a resistor and a capacitor to the non-inverting pin of the IC.
Is it possible to repair an LM723 circuit with original components?
Power supply with LM723 See at end for specific details of your circuit’s operation. If you need to repair this circuit with original components then it will be possible to do so. But you can probably achieve an easier result by using the existing Q3/Q4 (IF they are still undamaged) plus an LM317 (or LM317HV higher voltage version).