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+5 Volt Power Supply Circuit: (Electronic Schematic / circuit added 4/02) |
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0
to 24 Volt 4Adjustable Power Supply: 0-24V4A adjustable power supply, text in Finnish (Electronic circuit added 5/02) |
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0
to 30 Volt Lab Supply: (Electronic Schematic / circuit added 4/02) |
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1.2
Volt Reference : National Semiconductor Application Note 04-Nov-1995 / (added 8/03) |
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1.3V Power Supply: This is a replacement power source for 1.3V mercury cells or other small batteries. It has many uses and
I use this circuit in my computer to power a front panel multi adapter which has a digital thermometer. (added 10/05) |
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1.5A High Efficiency
Synchronous Switching Regulator Evaluation Board: The evaluation board is designed to supply 3.3V at 15 mA up to 1.5A. The input voltage range is 4V to 14V. Components were selected
based on the design procedure in the LM2651 datasheet. PCB layout is critical to reduce noise and ensure specified performance for any power supply design. (circuit design added 3/05) |
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12 Volt 30 Amp Power Supply: uses a single 7812 IC voltage regulator and multiple outboard pass transistors, this power
supply can deliver output load currents of up to30 amps (Electronic circuit added 5/02) |
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12 Volt Alarm Power Supply: (Electronic Schematic / circuit added 4/02) |
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12 Volt DC Power Supply: (Electronic Schematic / circuit added 4/02) |
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12 Volt to 9 Volt DC Converter: Car Converter for12 Volt to 9V (Electronic circuit added 5/02) |
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12V 30A Power Supply: Using a single 7812 IC voltage regulator and multiple outboard pass transistors, this power supply can deliver output load currents of up to 30 amps.
(Electronic circuit added 4/05) |
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13.8 Volt 20PSU: This is a Regulated DC power supply with short circuit protection and with current limiter. (added 6/03) |
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16
bit adjustable reference uses 8 bit digital potentiometers: 12/25/03 EDN Design Ideas / (added 09/05) It may be easy to find a precision voltage reference for your
application; however, a programmable precision reference is another matter. The circuit in Figure 1 yields a precision reference with an LSB of 62.5 µV. The circuit is a 16-bit DAC using three
8-bit digital potentiometers and three CMOS op amps.... |
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1Variable Regulated Power Supply: (added 2/05) |
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230 Volt Dimmer: FAIR WARNING - THIS SITE HAS ANNOYING POP UPS (circuit / schematic added 2/03) |
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2-Step Voltage Regulation Improves: Design Notes (Linear Technology) (added 01/06): DN209 - Design Notes (Linear
Technology) (added 1/06) |
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300 W PWM Amplifier (with stuffing option): This reference design allows customers with limited knowledge of digital audio
amplifiers to quickly build solutions, which meet Dolby, EMI and FTC standards, reducing the time-to-market for new consumer audio products. This 6 channel reference design, based on the
TDA8925ST and TDA8926J power stages, is available with an output power of 3 x 100 W. (circuit design added 3/05) |
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3-Terminal Regulator
is Adjustable: National Semiconductor - Application Note (app note added 2/06) |
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4-20 mA Digital-to-Process Current Transmitter: AN-21 - Analog Devices Application Note (app note added 2/06)
Describes a 3 I.C. Digital to 4-20 mA Current Output Circuit (DAC08, REF01 and OP221) |
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4MHz Monolithic Synchronous Step-Down Regulators Bring High Efficiency to Space-Sensitive Applications: DN304 -
Design Notes (Linear Technology) (added 1/06) |
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5 Volt Power Supply: (added 9/03) |
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5 W Universal
Input Dual Output Isolated TNY266: This design kit is a 5 W Universal Input Dual Output Isolated power supply using the TNY266 chip. (circuit design added 3/05) |
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78xx Regulator Board: circuit board and circuit for making voltage regulators based on 78xx ICs, in PDF format, text in Finnish (Electronic circuit added 5/02) |
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9 Volt 2PSU: A simple 9 Volt 2 amp supply using a single IC regulator. (added 6/03) |
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9 Volt Stabilized Power Supply: (Circuit added 9/04) |
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9V 2PSU: A simple 9 Volt 2 amp supply using a single IC regulator. There is little to be said about this circuit. All
the work is done by the regulator. The 78S09 can deliver up to 2 amps continuous output whilst maintaining a low noise and very well regulated supply. The circuit will work without the extra
components, but for reverse polarity protection a 1N5400 diode is provided at the input, extra smoothing being provided by C1. The output stage includes C2 for extra filtering, if powering a
logic circuit than a 100nF capacitor is also desirable to remove any high frequency switching noise. (added 11/05) |
