What Is an LED Circuit?

The LED circuit is a semiconductor that can convert electrical energy into visible light. It has changed the principle of incandescent tungsten filament light emission and energy-saving light three-color powder emission, and uses an electric field to emit light. When more LED products need to be used, if all LEDs are connected in series, the LED driver will need to output a higher voltage: if all LEDs are connected in parallel, the LED driver will need to output a larger current. Connecting all LEDs in series or in parallel not only limits the amount of LEDs used, but also increases the load current of the parallel LEDs, and the cost of the driver will increase. The solution is to use a hybrid connection. The number of serial and parallel LEDs is evenly distributed. In this way, the voltage distributed on one LED series branch is the same, and the current on each LED in the same series branch is also basically the same. The brightness is the same, and the current passing through each series branch is the same. Also similar.

LED circuit

The LED circuit is a type that can convert electrical energy into visible light.

LED (Light-Emitting-Diode) means a semiconductor that can convert electrical energy into visible light. It has changed the principle of incandescent tungsten filament light emission and energy-saving lamp three-primary powder light emission, and uses an electric field to emit light. According to analysis,

When more LED products need to be used, if all LEDs are connected in series, the LED driver will need to output a higher voltage: if all LEDs are connected in parallel, the LED driver will need to output a larger current. Connecting all LEDs in series or in parallel not only limits the amount of LEDs used, but also increases the load current of the parallel LEDs, and the cost of the driver will increase. The solution is to use a hybrid connection. The number of serial and parallel LEDs is evenly distributed. In this way, the voltage distributed on one LED series branch is the same, and the current on each LED in the same series branch is also basically the same. The brightness is the same and the current through each series branch Also similar.

When one LED of a series branch is of poor quality and short-circuited, the current flowing through the series circuit will increase regardless of whether the voltage-stabilized driving method or the constant current driving method is used, and the LEDs in the series branch will be easily damaged. After a large current passes through the damaged LEDs, it often appears as an open circuit due to the large current passing through it. After disconnecting an LED series branch, if a regulated driving method is adopted, the output current of the driver will be reduced without affecting the normal operation of all remaining LEDs.

If using constant current

1.Fuse (tube) is used in LED circuit ^[2]

From the above analysis, we know that the choice of the driver and load LED series / parallel mode is very important. When driving power LEDs with constant current, it is not suitable to use parallel loads: Similarly, voltage-regulated LED drivers are not suitable for series loads. ^[3]