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DVD power supply with NCP1027

Posted: 06 Nov 2008     Print Version  Bookmark and Share

Keywords:DVD players  NCP1027  servo-mechanisms 

DVD players require a few different voltages to power the logic circuitry but also all servo-mechanisms linked to the tray and optical head actuators. ON Semiconductor NCP1027 lends itself very well to this kind of applications where simple architectures lead to the lowest assembly cost. Despite the variety of low-end DVD players on the market, there is a common trend on the power supply requirements:

• Universal input voltage: 85- to 265Vac, 2 wire power cord
• Five different DC voltages, 1 non-filtered bias level:

1. 5V/1A
2. 3.3V/1A
3. -12V/20mA
4. +12V/20mA
5. -23V/10mA
6. Floating display bias

• Low standby power in no-load and partial load conditions

View the PDF document for more information.

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