12 Volt, 10 Amp Switching Power Supply

  

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Inside:
Switching Power Supply Circuits / Power Supply Circuits
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



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News


  • ThomasNet News (press release) (blog)
    ThomasNet News (press release) (blog) Higher power density for smaller solutions: The 4-A source and 6-A sink current of the UCC21520 reduce switching losses via faster rise times of 6 ns and fall times of 7 ns for a 1.8-nF load in high-frequ
     20 July 2016
  • Press Telegraph
    ... 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
     19 July 2016
  • EETE Power Management (registration)
    EETE Power Management (registration) “High performance is both high power and power density, and people are hungry for more and more data, so they need to cram in all the technology into a given space so are trending to higher power de
     19 July 2016
  • PR Newswire (press release)
    PR Newswire (press release) Higher power density for smaller solutions: The 4-A source and 6-A sink current of the UCC21520 reduce switching losses via faster rise times of 6 ns and fall times of 7 ns for a 1.8-nF load in high-frequency powe
     18 July 2016
  • IHS Electronics360
    LM53625-Q1 and LM53635-Q1 synchronous buck regulators. Source: Texas Instruments. Switch-node ringing is inherent in all . By reducing parasitic inductance and capacitance in the LM53625-Q1 and LM53635-Q1 regulators, ...
     6 July 2016
  • Electronics EETimes (registration)
    The IR1161L is targeted for flyback in chargers and adapters while the IR11688S is targeted for LLC in televisions, desktops, silver boxes and micro-servers. Both offer 200 V direct sensing which eliminates the need for external voltage divide
     29 June 2016
  • Electronic Design
    Electronic Design Some design talent is required to put the buck regulator to use: While the package includes the semiconductors, the inductors and capacitors are not included. Additional .... Current operate in the 250- to 500-kHz range
     28 June 2016
  • PR Newswire (press release)
    PR Newswire (press release) For more information, samples and an evaluation module, see www.ti.com/lm53635q1-pr. Switch node ringing is inherent in all . By reducing parasitic inductance and capacitance in the LM53625-Q1 and LM53635-Q1 regula
     27 June 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

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