Constant Current Vs Constant Voltage Led Strip

Even though a constant voltage driver may be slightly less efficient it enables a full flexibility to allow a greater final load size.

Constant current vs constant voltage led strip.

Constant voltage this type of driver will have a fixed voltage output. It will be a fixed output. An led light that is rated for constant voltage usually specifies the amount of input voltage it needs to operate correctly. Current controlled led tape lighting regulates light output across your run via ic s integrated circuits as compared to constant voltage which utilizes limiting resistors.

Constant voltage led driver is generally preferred for home users such as led strip and led modules. The output of the led drive power supply is mostly a constant current source that can change the voltage with the change of the led forward voltage drop value. Constant current drivers unlike constant voltage drivers don t make use of current limiters neither in the form of current limiting resistors nor current regulators which as a result allows for the direct connection to led s. If the circuit does not draw more that what is required it will work.

Constant voltage power supplies are used if leds need a different operating voltage than what s supplied by a power source. The current output for the driver will have a max rating. The question of using a constant voltage or a constant current driver is usually one of the last to be answered. The core components of led power supply include switching controller inductor switching component mosfet feedback resistor input filter device output filter device etc.

Let s start with identifying the differences. Below is a list of the major benefits of using the constant voltage and the constant current topologies. If current is not regulated led brightness can fluctuate shortening the lifespan. On the other hand constant current led drivers are manufactured to only operate constant current devices with specific ratings making them the more efficient of the two drivers.

Constant voltage drivers are designed for a single direct current dc output voltage. The constant voltage led driver can provide constant voltage up to a certain current value. Constant current this type of driver will have a fixed current outp. Switch to a different led strip solution if you want to use the different topology to enjoy the benefits of it.

Constant current led driver can output constant current in a certain voltage range. Constant current led driver is generally used in industrial led lighting applications. The constant current driver changes the voltage across the led allowing for a stable and constant current to the led.