pwm-vs-dc

9 месяцев назад

This video compares the PWM dimming frequencies of various popular smartphones, including the iPhone 15 Pro Max, Samsung S24 Ultra, and OnePlus 12. The video aims to help viewers understand how PWM dimming affects eye strain and find devices with the highest frequencies for a smoother visual experience. The video also highlights the differences in PWM dimming frequencies across different brightness levels.

5 лет назад

This video compares a cheap PWM solar charge controller to a DC-DC step-down module for charging a battery pack. The creator tests both devices under different conditions, including charging from a wall outlet and solar panels, to see which is more efficient. The video ends with a promise of a future video series showcasing the final build of the battery pack.

2 года назад

This video explains the differences between 2-pin, 3-pin, and 4-pin computer fans. It covers the purpose of each pin and how they affect fan speed control. The video also discusses the advantages and disadvantages of each type of fan, helping viewers decide which type is best for their needs.

3 года назад

This video compares 3-pin and 4-pin fans, explaining the differences in their connectors and functionality. The key difference is that 4-pin fans use Pulse Width Modulation (PWM) to control speed, allowing for quieter operation and more precise control, while 3-pin fans rely on voltage to adjust speed. The video also discusses compatibility and price considerations.