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MOSFET Circuit UPS Regulator's Output Current - 02/01/96 EDN-Design
Ideas....Use a current mirror and a power MOSFET to increase the output-current
capability of an IC-voltage regulator.… [Figure only] |
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MOSFET Current Sensing - Method of mirror current sensing a MOSFET (added
4/02) |
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MOSFET enhances low current measurements using moving coil meter - 15-Sep-05
Issue of EDN Venerable mechanical meter can measure ultralow currents, with some
help....[Design Idea by Stefan Strózecki, Institute of Telecommunications ATR,
Kaliskiego, Poland; Edited by Brad Thompson and Fran Granville] |
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[_OLD-ads-dont_upload/OLD I-ADS from web/ad-djandassoc.htm] |
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MOSFET enhances voltage regulator's overcurrent protection - 3-Mar-05 Issue
of EDN The classic LM317 adjustable-output linear voltage regulator offers a
relatively high, if package-dependent, current-handling capability. In addition, the
LM317 features current limiting and thermal-overload protection. With the addition of
a few components, you can enhance an LM317-based voltage regulator by adding a
high-speed short-circuit current limiter (Figure 1]....[Design Idea by Herb Hulseman,
Eagle Test Systems, Mundelein, IL] |
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MOSFET Follower Power Amplifier - Another contributed project that may be of
great interest (circuit added 6/07) |
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MOSFET H Bridge - (schematic / circuit added 6/07) |
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MOSFET LDO Voltage Regulator - This circuit has excellent voltage regulation,
due to positive feedback through R2 however the circuit must be started up. This
is done by Q4 and Q5. If the circuit does not need to be started under load, Q4,
Q5, and R6 can be deleted. You must then place a 1 meg resistor between the
source and drain of Q1. C2 slightly speeds response to rapid load changes and
can be changed in value or deleted. [Designed by Andrew R. Morris] |
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MOSFET Linear Amplifier for 50 MHz - Application Note Microsemi-formerly
Advanced Power Technology APT9802 ( app note added 04/05/06) |
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MOSFET Power Amp - DIY high power MOSFET amplifier200 Wrms 8 ohms -350 Wrms4
ohms.... |
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MOSFET Power Amp (project 101) - 200W MOSFET Hi-Fi Power amplifier
.... |
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MOSFET prevents battery damage - 5-Feb-09 Issue of EDN A MOSFET
protects reverse-connected batteries from excessive current....[Design Idea by Santosh
Bhandarkar, Wep Peripherals, Mysore, India] |
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MOSFET replaces Switch - 02/03/94 EDN-Design Ideas....By using a cheap,
readily available MOSFET, you can use a single-pole switch to turn a bipolar power
supply on and off without consuming extra power. In Fig 1, the switch simply controls
the MOSFET gate, which switches on the negative supply. Resistor R, which can be
several....[Design Idea by Malcolm Watts, Wellington Polytechnic, Wellington, New
Zealand] |
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MOSFET replaces Switch - 01/20/94 EDN-Design Ideas....By using a cheap,
readily available MOSFET, you can use a single-pole switch to turn a bipolar power
supply on and off without consuming extra power. In Fig1, the switch simply controls
the MOSFET gate, which swit....[Design Idea by Malcolm Watts, Wellington Polytechnic,
Wellington, New Zealand] |
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MOSFET serves as ultrafast plate driver - 3-Oct-02 Issue of EDN The
circuit in Figure 1 provides a 20-MHz square wave across a set of highly capacitive
ion-deflection plates in an experimental instrument. To get the required deflection,
the plate voltage must be 20 to 30V, much higher voltage than conventional logic or
driver families can provide. To minimize artifacts, the rise and fall times must be
very fast, with a minimum of overshoot and ringing....[Design Idea by Clive Bolton,
Bolton Engineering Inc, Melrose, MA] |
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MOSFET shunt regulator substitutes for series regulator - 25-Nov-04 Issue of
EDN You would normally use a series linear regulator or a dc/dc converter to
obtain 3V dc from a higher supply. However, when breadboarding a concept, you may be
able to use a shunt regulator, especially if a series regulator of the correct voltage
is unavailable. The MOSFET in Figure 1 can replace a zener diode in a shunt regulator
and provide lower output impedance than a zener diode....[Design Idea by Stuart R
Michaels, SRM Consulting] |
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MOSFET stabilized High Voltage Power Supply - (circuit / schematic added
5/05) |
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MOSFET Switch Provides Efficient AC/DC Conversion - 02/17/00 EDN-Design
Ideas EDN is migrating links. This link is not verified. Search the "title" + "EDN"
for new link. |
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MOSFET Tester - This testing procedure is for use with a digital multimeter
in the diode test-range with a minimum of 3.3 volt over d.u.t. (Tony van Roon's
diode-under-test). If your multi-meter is less than that it will not do the
test. Check your meter manual for the specs….. [Tony van Roon's circuit] |
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MOSFET pair makes simple SPDT switch - 12/09/99 EDN-Design Ideas....ith
an n-and p-channel MOSFET, you can easily implement a single-pole double-throw (SPDT)
switch to isolate part of a circuit and power it from a secondary supply…PDF has
several circuits, scroll for this one…. [Design Idea by Howard Chen, Vishay Siliconix,
Santa Clara, CA] |
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MOSFET-based analog circuit calculates square root - 19-Feb-09 Issue of EDN
Square-root-calculating circuits find wide use in instrumentation and measurement
systems for such tasks as calculating the rms (root-mean-square) value of an arbitrary
waveform, for example. Hence, designers need an effective analog square-root
calculator. Because manufacturers....[Design Idea by Abhirup Lahiri, Netaji Subhas
Institute of Technology, New Delhi, India;] |
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MOSFET-Based PreAmplifier for FM Radio DXing - .... |
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MOSFET-based, analog circuit calculates square root - 19-Feb-09 Issue of EDN
A MOSFET-based, analog circuit uses only MOSFETs to calculate square-root
function....[Design Idea by Abhirup Lahiri, Netaji Subhas Institute of Technology, New
Delhi, India] |
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MOSFETs reduce crosstalk effects on analog switches - 29-May-03 Issue of EDN
Some cost-effective analog multiplexer/demultiplexer ICs, such as the CD4053 and
CD4066, find frequent use as signal distributors. These digitally controlled analog
switches have low on-resistance. However, with all channels in the same package,
crosstalk can be annoying and unavoidable. Figure 1 provides a cost-effective and
viable method of solving this problem....[Design Idea by Stanley Chen, Global
Mixed-Mode Technology, Taipei, Taiwan] |
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