35W switching power supply circuit having a set-top box output of 5

35W switching power supply circuit having a set-top box output is shown in Figure 5. The five-way voltage respectively: Uo1 (+ 30V, 100mA), Uo2 (+ 18V, 550mA), Uo3 (+ 5V, 2.5A)
35W switching power supply circuit having a set-top box output of 5 - schematic

, Uo4 (+ 3.3V, 3A), Uo5 (-5V, 100mA). Wherein, + 5V and + 3.3V as the main output, the rest are supplemented by output from various quarters. When the AC input voltage u 220 (1 15%) V, the switching power supply total output power of 38.5W, the use of a wide range of input voltage (u 85 ~ 265V), the total output power is reduced 25W. Can be used as set-top boxes (Set Top Box), video recorder (VCR), camcorder (CVCR) and DVD player in the switching power supply. The set-top boxes switching power supply efficiency above 77%, with under-voltage and over-voltage protection.

Recommended videos

  • Switch Mode Power Supply Measurements and Analysis
    Duration: 1:02:38.
  • Power Supply Repair
    Duration: 16:47.
    Duration: 19:53.


  • EE Times
    EE Times They are current delivery mechanisms used in conjunction with low-frequency power amplifiers like audio or motor drive circuits or as current switches in DC-DC converters such as voltage regulators with outputs. The power transistor
     17 January 2017
  • Baxley Report
    Baxley Report ... into multiple applications, including exciting alternatives in ighter and more-tunable light for general illumination, backlighting for more-vivid displays, optimized power management for high-current and variable-speed
     16 January 2017
  • WebWire (press release)
    WebWire (press release) High-temperature Silicon-Controlled Rectifiers (SCRs) from STMicroelectronics allow manufacturers of voltage regulators, inrush current limiters for , motor-control circuits, and industrial solid-state relays to improv
     16 January 2017
  • Fair View Times
    Fair View Times According to Zacks Investment Research, “IXYS Corporation, designs, develops and markets power semiconductors used primarily in controlling energy in motor drives, power conversion (including uninterruptible and  .
     12 January 2017
  • ThomasNet News (press release) (blog)
    May Be First to Meet Level VI Energy Efficiency StandardIn contrast, most existing Level VI DC output EPS are and therefore relatively “noisy”. The unique design of the Triad WAU Wall Plug-In AC required higher grade core mate
     12 January 2017
  • Electronics Weekly
    ON's portfolio includes automotive-grade mosfets, IGBTs, LDOs and ; industrial motor power modules and discretes; and ushless DC motor chips and modules. To this has been added Fairchild IGBTs for solar inverters, ...Fairchild parts availab
     10 January 2017
  • Hackaday
    Hackaday , LCD displays, large-scale integration, class D audio and of course the demise of the thermionic tube, to name but a few. The result is often that the appliance itself runs from a low voltage. Where once you would have had a
     30 December 2016
  • Electronics360
    Featuring a split primary design for efficient 120 V or 380 V operation, TPL-2516 series transformers are optimized for offline and PFC-derived and full-idge/half-idge converters. Designed to meet MIL-PRF-27 requirements
     20 December 2016
  • IHS Electronics360
    IHS Electronics360 The choice of the components used in switch-mode () is extremely important, as their impact on performance is often not considered. These components—such as resistors, capacitors and inductors—are called up
     19 May 2016