15W wide range set top box power supply circuit design

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Summary:

working principle

The TinySwitch-III multi-output power supply as shown can provide 15W of output power. Typical applications include set-top boxes or DVD players, which all require the use of multiple output flyback power supplies.

design feature

  • Multiple output power supply
  • Excellent cross adjustment rate
  • Two output weighted regulators
  • Extremely energy efficient
  • Meets CEC/Energy Star 2008 requirements for operating mode efficiency (required 68.1%, up to 77%)
  • Low no-load power consumption (< 150 mW at 230 VAC AC input)
  • Conforms to CISPR-22/EN55022B for conductive EMI restrictions
  • Automatic restart function allows unlimited short-circuit output

See the PDF document for details (click on the PDF file to download)

72V Lithium-ion Battery Pack

The UFO Lithium Battery Packs include the popular sizes used in the lead-acid batteries but with the advantages of LiFePO4 technology. It maintains a ideal performance for deep cycle applications. At the heart of each UFO Bluetooth Lithium batteries is UFO PCM to take control of the battery performance and prevent the batteries from potential failure.

The Advantages of Lithium-ion Battery Pack

1.Higher energy density

The higher energy density of lithium-ion battery pack means we are going to get more power out of the same physical size cell than we could get from a lead-acid battery. So when using lithium-ion battery for electronic gear, it means more runtime but less weight.

2.Less weight

Less weight could be a big advantage for most electronic applications that need to be in a compact size and lightweight for use, including mobile applications, robots, drones, floor scrubbers, RVs. A lot of power is used for those devices, so less weight would be certainly an advantage for mobile applications.

3.Thousands VS hundreds of cycles

More cycles are an advantage by a lithium product we`re gonna get. You know the lithium batteries could provide thousands of cycles versus lead-acid batteries which only offer hundreds of cycles. It is a big difference in the cycling ability of lithium over lead-acid batteries.

4.Charge and discharge rate

We are able to discharge a lithium product much quicker than that of a lead-acid product and get the same capacity. If the lithium-ion battery pack is discharged to 80%, you can still get a good lifespan. But doing that with a lead-acid battery will damage its lifespan. Generally, a lead-acid battery can only use fifty percent of the discharge. The recharge time is quicker on a lithium product as well especially if we have a charger that`s large enough to put the capacity back. The lithium-ion battery packs have a low self-discharge rate of only 1-2% per month.


5. Less Maintenance

When using lead-acid batteries for power supply, regular maintenance is essential to ensure the battery performance. However, when purchasing lithium-ion batteries for power use, less maintenance is required. The lithium-ion cells is more stable with good performance. It saves a lot of time for maintenance and cost for replacement.


Comparision Of Battery


Lithium-ion battery pack Application

8 11.1V 5Ah Lithium battery application6 11.1V 13Ah lithium battery application

6 36V 10Ah lithium battery application

Lithium-Ion Battery Pack,Custom Lithium Ion Battery,Portable Lithium Battery Pack,Robot Equipment Battery

ShenZhen UFO Power Technology Co., Ltd. , https://www.ufobattery.com