Electronic Circuit Design

message: Hello, I want to know the single IC which can provide Both + V and -V from a single +Vin supply.. I need this for my dual supply opamp.Reply me as soon as possible. -  Thank u. Mail from KM There were chips, but now obsolete as most use a… more »

I am looking for a 25V Power Supply with 2A current for my Application. A regulated supply. TA - US Here is a simple to build regulated power supply. The two diodes are to boost the 24V to 25V DC. It uses regulator 7824 and TIP2955 PNP Transistor to… more »

I have problem with my power supply... . The power supply uses LM317 and TIP2955 and the unstable AC net here causes the output to drop sometimes below 5V. The normally output is 13,5V. I like to look at your schematics to improve my power supply. Mail… more »

I like your page about current source circuit basic design. However, I still have Little confuse of the power dissipation calculation. The max power dissipation of my circuit is 20.5V x 0.5A = 10.25W, but transistors I found are 2W power dissipation.… more »