12 Volt, 10 Amp Switching Power Supply

  

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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


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    ... emission control in motherboards and backplanes; hands-on calculations; controlling radiated and conducted emissions from ; reducing emissions from cables and packaging, calculating emissions for a digital circuit
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  • Electronic Design
    Electronic Design Switched-mode () require many components from a number of vendors. It does seem to be the case that many power-supply component vendors seem averse to increasing the level of integration—perhaps in order to avoid
     8 August 2016
  • Electronics EETimes (registration)
    Electronics EETimes (registration) Other applications include uninterruptible and , home appliances, static converters for DC motor drives and robotics. The GHS series conforms to latest industrial standards, as well as being covered by LEM's
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    Electronic Design EfficiencyEvery electronic device has a . Most of those are of the variety, which offer good efficiency. These include ac-dc supplies, dc-dc converters, ac motor drives, and inverters for solar-power conversion. Yet,
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  • 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
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