Most recently, I was dealing with microcontroller control over a multi-digit 7 segment display (for a clock). At first I used a dedicated SPI display driver chip (MAX6951) that both managed the ...

Advances in LEDs and LED drivers deliver a range of improvements for automotive and horticultural LED lighting.

Here’s an example circuit for an LED driver optimized for minimal emissions and the best EMC behavior. Figure 4 reveals the average radiated emissions from the circuit in Figure 3 .

This boost circuit implements current mode control and senses the LED current via resistor R14. The output voltage is boosted to just over 30V to drive 10 LEDs at a regulated current of 0.35A. Often, ...

The basic LED driver switching power supply circuit is not ... controller in a 0-to-10-V system sends an analog signal that adjusts the ballast output according to the voltage on the control circuit.

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 ...

In this article, we continue our discussion on the importance of grounding when installing LED lighting equipment. Part 1 of this three-part series focuses on the ground plane of the printed circuit ...

On the DC side (Figure 13), U1 and Q1 control the LED brightness using pulse-width modulation to attain a constant current. Inductor L1 and capacitor C3 store energy during an off cycle. Figure 13 The ...

Automotive-Compliant Buck LED Drivers ... the devices feature hysteretic-mode buck LED driver control, ... Safety features include overtemperature protection as well as LED short- and open-circuit ...

A VFD is installed with its EGC bonded to this panel’s grounding bar with the bar bonded to the panel frame. Section 2 is bonded to Section 1 through the conduit between the two panels. Each of the ...