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Parallel Connection of IGBT & MOSFET Power Modules - Application Note
Microsemi-formerly Advanced Power Technology APT0405 ( app note added
04/05/06) |
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Performance Comparison of the New Generation of IGBTs with MOSFETs at 150kHz -
Application Note Microsemi-formerly Advanced Power Technology APT9805 ( app
note added 04/05/06) |
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PFM Control Improves Dual Output Converter - 09/28/95 EDN-Design Ideas:
(design idea added 3/03) |
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Plus 5 to Minus 15 Volts DC Converter - National Semiconductor Application
Notes,28 Jun1996 (app note added 7/02) |
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Power Control Circuits - (schematic / circuit added 6/07) |
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Power control for arc welders & other inductive loads - (diagram added
05/06/07) |
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Power Dissipation the Easy Way Using the Power Design Tool Apex-AN37 - Apex
App Note (added 08/08/08) |
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Power supply - Circuit provides +5VDC regulated, +10VDC unregulated and 7.5VAC
….(added 04/02) |
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Power Supply (psu 1) - (electronic circuit added 4/05) |
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Power Supply Fits into Small Spaces - 11/13/03 EDN-Design Ideas: The demand
for negative-voltage power supplies is increasing with the popularity of
applications for portable devices. It can be expensive and relatively complicated
to generate a negative supply from a positive input source, especially when the
design requires both positive and negative outputs.....(design idea added 1/05) |
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Power Supply Runs off Battery or Wall Adapter - 06/18/98 EDN-Design Ideas:
(design idea added 2/06) |
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Power Supply Transient Protection for MNA & VNA Amplifiers - AN-60-027
Application Note MiniCircuits.com (app note added 04/05/06) |
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Power switch provides soft start - 03/30/00 EDN-Design Ideas:.....(design idea
added 5/02) |
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Powerful AM Transmitter - (electronic circuit added 10/05) |
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PowerLabs Flyback Driver - Circuit design (added 01/05) |
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Practice safe DC/DC converter - 07/20/00 EDN-Design Ideas: (design idea added
11/05) |
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Precharged Capacitor Ensures High Side Start up - 08/17/95 EDN-Design Ideas:
when you use a high-voltage bridge driver, such as the IR2110 or the newer IR2155,
a complete driver circuit can exhibit erratic behavior when you apply power if it
is designed exactly right.....(design idea added 3/03) |
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Precise Low Voltage Power Supply - This power supply eliminate voltage loss on
current meter. Will be designed for measure on low voltage DC/DC converters (e.g.
LED lamps powered from single NiCd/NiMH cell) ….(electronic schematic added 11/08) |
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Programmable source powers DC micromotors - 03/01/01 EDN-Design Ideas: A
simple, economic, compact, and tricky way of using the LM723 as a programmable
voltage source to drive dc micromotors which can set the output to a value of200
mV to 6V.....(design idea added 11/05) |
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Pulsing Charge Pump Drives Capacitive Loads - 11/05/98 EDN-Design
Ideas:.....(design idea added 3/03) |
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Push Pull Driver Provides Isolated 5 Volt At 1A - 03/30/00 EDN-Design Ideas: /
PDF contains multiple circuits, scroll to find the one of interest / Regulated5V
input to an isolated5V output with1A current-output capability.....(design idea
added 5/02) |
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Quad DC/DC Converter for Triple Output TFT Supply Plus LED Driver - Linear
Technology LT1942 (app note added 2/05) |
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Quad Output Switching Converter Provides Power for Large TFT LCD Panels -
DN349 Design Notes (Linear Technology) (app note added 1/06) |
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Quasiresonant Converter uses a Simple CMOS IC - 04/15/04 EDN-Design Ideas:
Figure 1 shows a flyback power supply that has low noise and uses a simple CMOS
4093 IC for its control. The electrical noise of a converter arises mainly when
current switches on. Diode recovery and charging parasitic capacitances create
high di/dt, which is the main cause of noise.....(design idea added 1/05) |
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Quasiresonant Flyback converter easily charges energy-storage capacitors -
07/23/09 EDN Increase energy transfer by using boundary-conduction
mode.....(design idea added 08/09) |
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Quickly discharge Power supply capacitors - 07/05/01 EDN-Design Ideas:
A perennial challenge in power-supply design is the safe and speedy discharge, or
"dump," at turn-off of the large amount of energy stored in the postrectification
filter capacitors. This energy, CV 2 /2, can usually reach tens of joules. If you
let the capacitors self-discharge,.....(design idea added 1/05) |
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Reduce EMI By Sweeping a Power Supply's frequency - 05/27/04 EDN-Design Ideas:
Switching power supplies can be notorious noise generators. You should prevent
this noise, which is conducted, Radiated, or both, from returning to the input
source, where it can potentially wreak havoc on other devices operating from the
same input power.....(design idea added 02/05) |
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Regulator Generates as Many as Four Voltages - 08/03/95 EDN-Design Ideas:
(design idea added 3/03) |
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Regulator has One Active Part - 03/16/95 EDN-Design Ideas: (design idea added
03/03/03) |
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Regulator has One Active Part - 03/16/95 EDN-Design Ideas: (design idea added
03/03/03) |
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Regulator Provides ±12V - 10/23/97 EDN Design Idea.....(design idea added
3/03) -Simple circuit can provide ±12V from a5V input using only one
switching-regulator IC and a few off-the-shelf |
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Restore DC to NRZ sigmals - 10/28/99 EDN-Design Ideas:.....(design idea added
2/06) |
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RMS to DC Converter is Accurate & Stable - 09/14/95 EDN-Design Ideas:
Combining the well-known true rms-to-dc circuit with a simple S/H circuit
eliminates offset errors, which increases accuracy and temperature stability. The
circuit in Fig 1 uses a low-cost analog multiplier, IC1; an integrator, IC3A, R5,
and C1; and an analog inverter,.....(design idea added 6/06) |
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Royer Flyback driver - This circuit is an auto-oscillating, resonant, current
fed High voltage DC-DC converter. The output voltage is calculated as follows Vout
= Vin * pi * Nsecondary / Nprimary. The primary peak voltage is Vin * pi , and the
rms voltage is Vin*pi*0.7…(added 05/08) |
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Run Switching Type AC Power Adapters on DC - I have received a couple emails
from people looking for inexpensive DC to DC converters, which can convert 40v to
60v DC into say +5 or +12v. Such input voltages are often found in new
automotive and industrial applications with a typical DC voltage of 48 volts. It
turns out that many, not all, but many, standard AC line operated power adapters,
which use switch mode techniques, will indeed work great when supplied with DC
instead of AC. The unit below works down to about 30v DC and delivers 500ma at 5v.
If you draw less current, it will operate at even lower DC input voltages....
….(designed by David A. Johnson) |
