What are the extended functions of DMB-T to help operators develop more application services?
The DMB-T solution not only supports the existing various broadcast services, but also has the scalability to support various new communication services. While solving the problem of digital high-definition television transmission, it will bring new development space to high-speed information user access and mobile communications. mainly includes:
(1) Internet applications can be further expanded.
(2) Add multicast, on-demand, and paging services.
(3) Expand comprehensive and interactive application services such as video, data, and voice.
(4) Develop more portable mobile reception services, including mobile phones to receive digital TV. Further develop receiver positioning services.
Drivers with dimming capability can dim the LED light output over the full range from 100% to 0%. Dimming drivers can dim LEDs by reduction in the forward current, pulse width modulation (PWM) via digital control, or more sophisticated methods. Most dimming drivers operate using the PWM method. With this method, the frequency could range from a hundred modulations per second to as high as hundreds of thousands of modulations per second, so that the LED appears to be continuously lighted without flicker.
At present, the most commonly used LED dimming power: LED thyristor dimming power, LED 0 / 1-10V dimming power, PWM dimming power supply. Other dimming works by controlling the current and voltage, the frequency of the output to achieve the LED dimming function.
0-10V/PWM/RX Dimming Driver
10V Dimmable Led Driver,Led Pwm Driver,Constant Current Driver Dimmable
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