Showing posts with label lm317. Show all posts
Showing posts with label lm317. Show all posts
Wednesday, September 10, 2014
9 Volt DC Power Supply Using LM317 Regulator
There are many ways to obtain a very stable voltage 9VDC which has very minimal distortion. If you really love in the audio field, you must have a power supply at the level of the OP Amp should be free from hum. Use of Power Supply which has a higher stabilization and free of humming and buzzing frequently encountered in the use of communication tools such as Handy-talkie and radio transmitters.
To overcome the above problem, we have to provide the filters on the power supply using IC regulator. You can use the LM 7809 or you can also use the regulator IC LM 317. This regulator has advantages over the use of IC 78XX. LM317 has a nature that is at the Gate (no.1 feet) can be tuned to provide feedback which is inversely proportional to the value of R (resistor). The R value can affect the output voltage on pin 2(V-out), pin 3 as input (V-in). The function R can be replaced with a variable resistor, but you must have an indicator meter or AVO meter to ensure that the output voltage is true 9 Volt. If youve found your desired voltage, for example 9VDC, then you can connect to the component that you want to turn on. So first set the output voltage using a volt meter before connecting to the equipment to be you turn on.
KA317 / LM317 is a Three Terminal Positive Adjustable Regulator integrated schema, the monolithic characteristic adjustable positive voltage regulator designed to supply more than 1.5 A of load current with output voltage can be adjusted with a range capability 1.2 V of up to 37 V. This tool will work for internal current limiting, thermal shut-down and securing the compensation scope. You have to use aluminum as an additional cooling.
This schema will deliver 9V regulated DC voltage at maximum current of about 1A. The schema uses a transformer with a secondary output voltage 15-24V AC/1A. To give input in Primary of transformer, it’s dependent electrical conduit installation in your home. If the mains voltage 110V, then you have to find a 110V in transformer primary voltage. For the diode, you can use 4 pieces diodes 1N4002 (1A rectifier diode) or better by using a diode bridge 2A.
| 9 Volt DC Power Supply Using LM317 Regulator |
Monday, September 1, 2014
Eliminator 1 5 Volt battery using LM317
This schema is a battery eliminator 1.5 V, that is, a power supply of 1.5 volts, low consumption that takes as input the output of the USB PC or notebook. The power adapter is simple, it converts the voltage from 5V to 1.5V USB ports, using the popular LM317 IC and a few other components. To be exact this schema uses only three components, one is the LM317, R1 = R2 = 470 ohm and 100 ohm.
Eliminator 1.5 Volt battery using LM317 Circuit Diagram
Wednesday, August 13, 2014
Simple Solar Battery Charger with LM317 Wiring diagram Schematic
Simple Solar Battery Charger with LM317 Circuit Diagram. This is a solar panel battery charger schematic for AA and AAA rechargeable batteries. A small solar panel would be very good as a source of voltage charger. Building a solar AA battery charger only requires a few components and a simple construction. Solar panels should be well adapted to the battery to be charged or the battery may be overcharged.
If you want to charge batteries with different capacities, then you need to change the solar panels. Since this is a simple solar battery charger that does not automatically turn off when the battery is full. So we need to maintain the charging current is low enough that will not damage the battery even when they are fully charged. An LM317T voltage regulator chip that can be used with a suitable resistor to regulate current. See solar AA battery charger
Solar Battery Charger with LM317 Circuit Diagram
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