Practical LED driver circuit. With the feasibility demonstrated, I designed the previous voltage multiplier LED driver. The output current may be scaled simply via adjusting the capacitor values. All ...

What this shows is that in a high-temperature LED environment, even capacitors rated for 105°C can’t reach the lifetimes that designers need to make an effective LED power supply. ... The bottom line: ...

Date Announced: 14 Sep 2011 LED lighting drive power in the market is usually divided into two level architecture and one level architecture, one level architecture means to convert 220V electricity ...

These TCJ series polymer tantalum capacitors are available in 1uF/63V, 4,7uF/63V, 10uF/63V and 4.7uF/75V, 6.8uF/75V rated voltages. “LED power drivers also have high voltage requirements, as branches ...

Date Announced: 21 Apr 2011 San Jose, Calif. - Power Integrations (Nasdaq:POWI), the leader in high-voltage drivers for offline LED lighting, today announced a new reference design (DER-278) based on ...

With just a few lines of code and a 100 nF buffer capacitor across the ATtiny’s power pins, [Tim] was able to turn an LED on and off by sending pulses through the supply lines.

Intersil’s ISL1903 (see Figure 1) and ISL1904 LED driver controllers incorporate a dimmer holding circuit (DHC). It’s a combination of an active bleed and damping circuit. The active bleeder circuit ...

Figure 2: LED forward voltage vs. LED Forward current. This white paper looks into the design specifications and constraints for an LED driver for backlighting solutions. Architectural methods would ...

Note the LED driver consists of a switching power supply oscillating around 50 to 100 kHz. A small portion of this high frequency can be coupled back to the line input through capacitors, thus ...

The Pi can sometimes work with I²C devices at 5 V, but this isn’t ideal long-term. So [Andrew] put the LED driver on the 3.3 V I²C bus. ... a capacitor, and LEDs.

A novel high power factor, soft-switched Light Emitting Diode (LED) driver without electrolytic capacitors is proposed in this paper. A novel high power factor, soft-switched Light Emitting Diode ...