The series pass transistor, operates in the linear region ... Often, taking it apart will uncover an unusual circuit or a clever design trick. Although I know about linear LED drivers, this high ...

Let’s take a look at both. Here’s the simplest BJT LED Driver circuit. It consists of a transistor connected in common emitter configuration. The transistor gets switched on when the input ...

This simple LED driver circuit allows us to drive up to seven LEDs by using ... when using a single NiMH battery cell rated at 2000 mAh. The 555 timer drives the transistor at 222 kHz rate. The seven ...

For instance, check out this WS2811A driver ... to just one transistor, three resistors, and a capacitor. Click through the link above for his step-by-step description of how the circuit works ...

An LED-driver reference design for an LED replacement of 100W incandescent bulbs has been introduced by Power Integrations, writes Richard WIlson. Dubbed DER-322, the circuit is desigend to fit neat ...

Linear constantcurrent drivers, for instance, offer low EMI, low cost, and use only a few components. Many designers favor them for low-current applications where power loss is a minor concern.

The only waste is due to transistor switching and inductor losses, and the circuit is able to deliver an average of 10 mA to the LED for a total consumption of 3 mA By adjusting the transistor's ...

After the level translator, the input pulse goes through a narrow pulse generator circuit, set to ~5ns when shipped but variable across 1.2 to 20ns using an on-board trimpot. The lower limit set by ...

high-side-driver (HSD) that is typically used to turn on an incandescent bulb. Generating sufficient light output often requires a series string of LEDs. Consequently, a boost converter is often used ...