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IC 7805 Variable Power Supply Circuit [5V to 15V]

Last Updated on September 11, 2021 by Swagatam 12 Comments

7805 resistive divider values compressed

Although, a 7805 IC is mostly used as a fixed 5 V voltage regulator, it is possible to configure a 7805 IC to produce a variable output from 5 V and higher, depending up the input DC supply. In this post I have explained a simple circuit network which can be used for getting an […]

Filed Under: Power Supply Circuits Tagged With: 15V, 7805, Power, Supply, Variable

Higher Variable Output Voltage from IC 7812

Last Updated on January 2, 2024 by Swagatam 15 Comments

variable output from IC 7812 compressed

You may have often wondered whether it was feasible to get higher voltages than 12 V from a 7812 IC? In this short post I have explained how to configure the IC 7812 with a BJT stage, so that its output can be made variable for achieving any desired voltage higher than 12 V, without […]

Filed Under: Power Supply Circuits Tagged With: 7812, Higher, Output, Variable, Voltage

12 V to 30 V High Current Boost Converter Circuit [Variable]

Last Updated on January 18, 2025 by Swagatam 9 Comments

DC to DC converter

In this post I have explained how to make a high current boost converter circuit which will step up a 12 V DC to any higher level up to 30 V maximum, and at an impressive 3 amp current rate. This high current output can be further enhanced by suitably upgrading the inductor wire gauge […]

Filed Under: Power Supply Circuits Tagged With: Boost, Converter, Current, High, Variable

LM317 Variable Switch Mode Power Supply (SMPS)

Last Updated on August 22, 2024 by Swagatam 118 Comments

variable switching power supply using LM317 2

So far in this website we have studied LM317 based linear power supply circuits, here I have explained how an LM317 can be executed as a variable switch mode power or SMPS with zero loss. LM317 as Linear Regulator We all know that an LM317 IC is internally designed to work as a linear voltage […]

Filed Under: Power Supply Circuits Tagged With: LM317, Mode, Power, Supply, Switch, Variable

0-60V LM317HV Variable Power Supply Circuit Diagram

Last Updated on January 17, 2025 by Swagatam 81 Comments

317hv

The high voltage LM317HV series of ICs will allow to go beyond the traditional voltage limits of an LM317 IC and enable controlling supplies that may be as high as 60V. 0-60V Regulation with a Single IC LM317 Therefore now you can build a universal 0-60V regulated power supply circuit loaded with all the essential […]

Filed Under: Power Supply Circuits Tagged With: 60V, LM317HV, Power, Supply, Variable

LM324 Variable Power Supply Circuit

Last Updated on July 6, 2019 by Swagatam 206 Comments

power supply

The presented universal power supply circuit can be used just for anything, you can use it as a solar battery charger, bench power supply, mains battery charger circuit, or for any desired application regardless of the voltage and current range, which are extremely flexible and fully adjustable. Main Features: The mains features of this power […]

Filed Under: Power Supply Circuits Tagged With: LM324, Power, Supply, Variable

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