12 Volt, 10 Amp Switching Power Supply

  
The switching power supply, shown in the schematic, provides 12 volts, at 10 amps, maximum, using a discrete transistor regulator with an op-amp functioning as a comparator in the feedback circuit. The supply was constructed in 1984 and is variable frequency, as opposed to the pulse width modulator (PWM) controllers used today.
12 Volt, 10 Amp Switching Power Supply - schematic

With reference to the schematic, the front panel power-on light is not shown. There is no adjustable current limiter in this unit, although R1, R2, R3, Q2, R8, R9, C5 and Q4 set the current limit to approximately 10 amps. As you can see, the design is ver



Recommended videos


  • 12V 10AMP DC Power Supply
    Duration: 12:30.
  • How to design a dc power supply
    Duration: 5:31.
  • How To Make a 12V Power Supply (adapter)
    Duration: 7:34.

News


  • EE Herald
    applications... switched-mode (), LED lighting, filters, motor drives, and others. ST has also linked its eDesignSuite with the web-based smart transformer selector published by Wurth Elektronik. This enables power-supply designers to auto
     23 March 2017
  • Wall Street Times (press release)
    ST's eDesignSuite can assist accelerate design of many circuits and systems counting Switched-Mode (), LED lighting, filters, motor drives, and others. ST has now linked its eDesignSuite with the web-based Smart Transformer Selector ...
     22 March 2017
  • GlobeNewswire (press release)
    ...ST's eDesignSuite can help accelerate design of many circuits and systems including Switched-Mode (), LED lighting, filters, motor drives, and others. ST has now linked its eDesignSuite with the web-based Smart Transformer Selector 
     21 March 2017
  • EETE Power Management (registration)
    The increased safety margin and superior static and dynamic behavior of the new devices enable designers to improve the performance of a wide variety of products such as server power supplies, 3-phase switched-mode (), LED ...
     9 March 2017
  • Highland Mirror
    ... 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
     6 March 2017
  • Electronics360
    The TCM series can be designed into circuit boards on a large number of power electronic devices used for a wide range of applications, including and converters, inverters, battery management systems and chargers. The TCM ...
     4 March 2017
  • Electronics EETimes (registration)
    Electronics EETimes (registration) industryThe overall market for AC/DC and DC/DC commercial (C-), which excludes consumers and uninterruptible (UPS), is estimated to be worth between 22 and 25 billion US Dollars. The market has been s
     23 February 2017
  • EETE Power Management (registration)
    EETE Power Management (registration) Diodes has launched a high-performance power switcher with an integrated high-voltage (HV) start-up circuit for line-powered chargers and adaptors in the consumer and industrial markets. Designed as a pri
     23 February 2017
  • 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

.