LM317 | Electronic Project Circuits

Posts Tagged ‘LM317’

ultra-regulation power supply +24V -24V by LM317,LM337

The ultra-regulation of the power supply +48VDC,+24VDC,+16.4VDC is so over the top and unnecessary that most, if not all, people building this amplifier would not even notice the difference. However there are a number of benefits to this design. First its a dual tracking design. Because the open loop gain of the amp is low, its common mode rejection due to the power supply is not great. However if both the + and – voltage rails move up and down the same amount, there is no bias drift.
Read More Source:http://headwize.com/projects/showfile.php?file=gilmore3_prj.htm

Be the first to comment - What do you think? Posted by admin - March 2, 2008 at 11:31 am

Categories: Power supply, Variable Regulator Tags: 24v power supply, dc voltage regulator, dual power supply, LM317, LM337

LM317 / LM338 / LM350 CURRENT REGULATOR CALCULATOR

You can use this calculator to vary the value of the program resistor (R1) and calculate the output current for the LM317 / LM338 / LM350 family of three terminal adjustable regulators. This calculator will work for adjustable regulators with a reference voltage (VREF) of 1.25.
Read more source:http://diyaudioprojects.com/Technical/Voltage-Regulator/index.htm

Be the first to comment - What do you think? Posted by admin - December 7, 2007 at 8:59 am

Categories: Power supply Tags: current source ic, LM317, LM338, LM350T

Top LM317 Regulator

I have circuit Regulator power supply by IC LM317 very many.
so i think more this circuit is very nice for you.
General Description
The LM117 series of adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 1.5A over a 1.2V to 37V output range.Simple Top LM317 Regulator Circuit

LM117

Features
Guaranteed 1% output voltage tolerance (LM317A)
Guaranteed max. 0.01%/V line regulation (LM317A)
Guaranteed max. 0.3% load regulation (LM117)
Guaranteed 1.5A output current
Adjustable output down to 1.2V
Current limit constant with temperature
P + Product Enhancement tested
80 dB ripple rejection
Output is short-circuit protected

The LM317 is very cheap