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Two AA cells
power step-down regulator 01/07/99 Issue of EDN DC/DC conversion is
particularly challenging when both the input and output voltages....Page
includes several designs. Scroll to find this one.... [Design Idea by
Len Sherman, Maxim Integrated Products, Sunnyvale, CA] |
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Two AA Cells Power Step-Down Regulator and 3.3V Boost - Maxim
Application Note 256: Stepping down from low voltage inputs like 2 AA
cells is challenging. This circuit provides one solution to generate
1.5V at 600mA and also supplies 3.3V at 200mA. |
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UCC3809 Evaluation Module - The UCC3809EVM evaluation module is an
isolated 10-W, 3.3-V converter designed for telecom input voltages,
nominally -48 VDC, but ranging from -32 VDC to -75 VDC. The UCC3809 economy
primary-side controller is used as the pulse-width modulator (PWM), combined
with a TLV431 low-voltage adjustable-precision shunt regulator on the
secondary side....(added 3/05) |
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UCC3819 250-W PFC Boost Follower PreRegulator Design - This is an
App Note that describes a reference design. This paper reviews the
benefits of a boost follower topology and the design of a 250-W PFC boost
follower preregulator. (added 3/05) |
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UCC38C42 25-Watt Self-Resonant Reset Forward - This is an application note
that describes a reference design. This reference design presents a
self-resonant reset forward converter using the UCC38C42 BiCMOS Low-Power Current-Mode
PWM Controller. The input voltage for this converter is compatible with the telecom
input voltage range of 36 VDC to 72 VDC. The converter is designed to operate at a
switching frequency....(added 3/05 |
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Ultra Low Drop Linar Regulator - MOSFET based linear voltage regulator with
a voltage drop of as low as 60 mV at 1 ampere. Drop of a fewer millivolts is possible
with better MOSFETs having lower RDS(on) resistance. The circuit in Fig. 1 uses
15V-0-15V secondary from a step-down transformer and employs an n-channel....
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Ultra-Low Dropout Regulator - DN32 Design Notes (Linear Technology)
(app note added 1/06) |
| Ultra-low-noise low-dropout regulator
achieves 6-nV/√Hz noise floor - 23-Jun-05 Issue of EDN LDO has
ultralow-noise output.... [Design Idea by Ken Yang, Maxim Integrated Products Inc,
Sunnyvale, CA; Edited by Brad Thompson and Fran Granville] |
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Universal DC-to-DC Converter - This circuit will generate a smaller DC
output voltage from a larger DC input voltage.It is quick and simple to make and by
changing the value of the zener diode, the circuit can be universally adapted to
provide other output voltages.The circuit and all diagrams represent a DC convertor
with 12V battery input and 9Volt DC output.(electronic schematic / circuit added 4/02)
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Universal PSU - Circuit designed by Volker Jeschkeit. A Universal
Power supply based on the L200 regulator, which includes an outboard pass transistor
to boost output currents up to 4 amps. (added 11/05) |
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Use a TL431 shunt regulator to limit high ac input voltage - 25-Oct-07 Issue
of EDNThis circuit clamps input-ac voltages to levels safe for the operation of the
power MOSFET in an SMPS.... [Design Idea by Todor Arsenov, STMicroelectronics, Prague,
Czech Republic] |
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Using The LM317T To Regulate Voltage - Use an LM317T to regulate voltage in
renewable energy projects…. [REUK - Renewable Energy UK website] |
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