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FET
Circuits, Page 6
FET Circuits: #'s A
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Last Updated on:
Monday, October 03, 2011 06:08 PM |
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Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
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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 Linear Amplifier for 50 MHz - Application Note Microsemi-formerly
Advanced Power Technology APT9802 ( app note added 1/07) |
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MOSFET Power Amp (project 101) - 200W MOSFET Hi-Fi Power amplifier
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MOSFET Poweramp - DIY high power MOSFET amplifier200 Wrms 8 ohms -350
Wrms4 ohms (added 4/02) |
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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 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 Switch Provides Efficient AC/DC Conversion - 02/17/00 EDN-Design
Ideas...../ (schematic / circuit added 11/03] EDN is migrating links. This link is
not verified. Google 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 Beats Murphy's Law - 12/22/94 EDN-Design Ideas..... EDN is
migrating links. This link is not verified. Search the "title" + "EDN" for new
link. |
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MOSFET Current Sensing - Method of mirror current sensing a MOSFET
(added 7/02) |
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MOSFET Enhances Low Current Measurements using Moving Coil Meter -
09/15/05 EDN -Design IdeasVenerable mechanical meter can measure ultralow
currents, with some help. EDN is migrating links. This link is not verified.
Google the "title" EDN for new link. |
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MOSFET Stabilized High Voltage Power Supply - (circuit / schematic
added 5/05) |
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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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FET Circuits: #'s
A B-D
E-H I-L
M N-S
T-Z |
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