Power Supply For Led Lights Circuit

Take our n3500 switching power supply for example.

Power supply for led lights circuit.

We re using a battery as our power source because they re easy to find and they can t supply a dangerous amount of current. The basic template for an led circuit is pretty simple just connect your battery resistor and led in series. As you ve probably put together from the info in the last section you ll need a battery a resistor and an led. Circuit 3 of simple led circuits leds in parallel the final circuit in the simple led circuits tutorial is leds in parallel.

This means each led in the circuit will. In this circuit we will try to connect three 5mm white leds in parallel and light them up using a 12v supply. The zener value shown is 310v 2 watt and is suitable if the led light includes around 93 to 96v leds. The power supplies focus on meeting criteria for efficiency power factor pf total harmonic distortion thd emission thermal management and specific standards such as ul en and iec.

Here s a really simple and inexpensive 1 led driver circuit. Led drivers and led power supply units are used across a wide range of indoor and outdoor led luminaires. Simple led light emitting diode circuit diagram. Consistent led performance with any power supply and led s costs about 1 only 4 simple parts to connect efficiency can be over 90 with proper led and power supply selection can handle lots of power 20 amps or more no problem.

The circuit must provide sufficient current to light the led at the required brightness but must limit the current to prevent damaging the led. The circuit is a constant current source which means that it keeps the led brightness constant no matter what power supply you use or surrounding environmental conditions you subject. Low dropout the input voltage can be as little as 0 6 volts higher than the output voltage. The leds in the above discussed led lamp circuit can be also protected and their life increased by adding a zener diode across the supply lines as shown in the following image.

The interesting thing about series parallel led circuits is how easily you can expand the number of lights on a given power source. The circuit diagram for leds in parallel connection is shown in the following image. The requirements of a lighting application often dictate what type of circuit can be used but if given the choice the most efficient way to run high power leds is using a series circuit with a constant current led driver. Power led s simplest light with constant current circuit.