LM317K | Electronic Project Circuits

Posts Tagged ‘LM317K’

Automatic Charger and Full charged indicator using LM317K-TL431

This is circuit Automatic Charger and Full charged indicator. For 24V batteries it can charger with current be stable about 1.5A and have voltage output 27Volt with integrated number circuit LM317K. When the battery has had full already , as a result will cut the work. There is a tube LED show the work with use integrated number circuit LT431 perform check the level , voltage battery and systematically protect short circuit with IC LM317. Unless D2 perform protect wasp a pole battery wrong as well. The IC1 should hold heat sink with. The detail is other , see in the circuit.

Be the first to comment - What do you think? Posted by admin - January 31, 2010 at 8:51 am

Categories: Battery charger Tags: 24V battery charger, LM317K, TL431 circuit

Low Noise Variable Output 1.25V to 12Vdc

This circuit is DC converter low voltage , 12V from be 1.25V to 10Vdc by can give current topmost get about 1.5A. You should use IC number LM317K because have electric many power more the number LM317T. By should hold heat sink. That have large-sized with. The R4 use for fine decorate voltage output. The C1,C3 , and , C2 , for decrease all noise well. The detail is other , see in the circuit.
circuit source by joe (aircraftdesigner)

Be the first to comment - What do you think? Posted by admin - January 27, 2010 at 5:34 am

Categories: Power supply, Variable Regulator Tags: dc variable power supply, LM317K, low noise power supply

6V or 12V lead acid battery charger using LM317

This circuit be lead acid battery charger again interesting circuit, Because it can charger get both of 12V sizes and 6V. By change with switch only and this circuit charging with current about 1Amp. When see the circuit you will think us uses integrated number highly popular circuit be LM317K again. By when you Close SW1 make can charger battery 6V get. Which have voltage come out about 7 Volt. But enough Open SW1 as a result use charging battery 12 V get. Which give volt come out about 14Volt supposing that you use battery 6V 10Ah take time charging current 10 long ago hour. The diode D3 and D4 help protect voltage turn back from battery get. The detail is other see in the circuit.