True color led driver

I feel really disappointed from Dell. They just told they're unable to solve that and told me to unistall the program since the system run anyway without it. Well If they are really unable I would expect them being a little more polite, I mean it is like they told me: "don't care about it".

I actually care since my laptop wasn't for free. Browse Community. Laptops General - Read Only. Turn on suggestions. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Showing results for. Search instead for. Did you mean:. Hello, I have a new Dell XPS which has a software application that was installed by default called "True Color" which is normally in the task bar near the clock.

All forum topics Previous Topic Next Topic. Solution 1. Accepted Solutions. To reduce switching noise interference, the LT is synchronizable to an external clock. Most LED drivers operate with an independent, free-running internal oscillator. Each switching cycle begins when the internal oscillator transitions from high to low. After the PWM signal is driven high, the switch has to wait for the next oscillator high-low transition to turn on, as shown in Figure 1.

The turn on delay varies from 0 to one full oscillator cycle, which limits the achievable PWM dimming ratio. This extra cycle becomes an obstacle when high PWM dimming ratios are required.

The LT adopts a new timing scheme, illustrated in Figure 2, to run the converter. Instead of using a free-running oscillator, the LT aligns the internal oscillator to the external PWM signal. When the PWM signal is low, the internal clock is disabled. The PWM rising edge wakes up the internal oscillator with a fixed ns delay. This feature reduces the transient recovery time, further increasing the achievable PWM dimming ratio.

This kind of PMOS driver must juggle the tradeoffs between fast transient response and high power consumption. No results were found. Need Help? Please try our online Chat , Email , or Call services. Because life waits for no one, at LG USA we create consumer electronics, appliances and mobile devices that are designed to help you connect with those who matter most.

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