LED Circuits

This LED lamp uses only three transistors and only requires a voltage of 0.71V t...

Each 8050 transistor can drive eight to sixteen LEDs. Only LEDs with the same li...

The night light circuit introduced here consumes only 30mW of power. The lightin...

The AC voltage generated by the generator is bridge rectified (D1-D4), filtered ...

Flashlight batteries are not durable and need to be replaced after a short perio...

This environmentally friendly "12W" LED AC/DC dual-purpose lighting lamp (self-i...

LED has the advantages of high brightness, low power consumption, long life and ...

　This energy-saving LED dimming desk lamp light source changes the traditional i...

In modern homes, due to limited conditions, bathrooms, dining rooms or living ro...

Before making it, first have a general understanding of the characteristics of w...

The circuit of the variable rate LED flasher is shown in the figure below. By ad...

The circuit working principle diagram drawn based on the actual object is shown ...

Figure 1 shows that LM317 is connected as a 60mA constant current source to powe...

This desk lamp can emit cold light suitable for reading. 50 white LEDs (LED1 to ...

So I made an LED flashlight. The circuit is shown in the attached figure. It use...

The circuit working principle of the mini desk lamp circuit is shown in Figure 1...

Figure 1 shows the emergency lighting circuit. When sunlight falls on the photot...

We take the example of using TPS62260 to control and generate PWM. TPS62260 is a...

Here we introduce a practical LED automatic emergency lighting circuit, which us...

Here we introduce two 220V LED lighting lamps made with integrated circuit LNK30...