|
Saturable Bead Improves Reverse Recovery: 02/03/97 EDN-Design Ideas / (added 3/03)
|
|
Selecting
the best inductor for your DC-DC converter: Coilcraft - Power Magnetics Application Note - (app note added 6/06) |
|
Selection guide – chip
inductors: Coilcraft - Power Magnetics Application Note - (app note added 6/06) |
|
Selection guide – SM power
inductors: Coilcraft - Power Magnetics Application Note - (app note added 6/06) |
|
Selection of External Bootstrap
Diode for LM510X Devices: National Semiconductor - Application Note (app note added 3/06) |
|
Signal transformer
application: Coilcraft - Power Magnetics Application Note - (app note added 6/06) |
|
Simple +5V Power Supply circuit: (Electronic circuit added 4/05) |
|
Simple Circuit Charges Lead Acid Batteries: 02/03/97 EDN Design Ideas / (added 5/02)
02/03/97 EDN Design Ideas / (added 5/02) The circuit in Figure 1
charges lead-acid batteries in the conventional way: A current-limited
power supply maintains a constant voltage across the battery (2.4V/cell
or so, as specified by the battery manufacturer) until the charging
current decreases below a certain level (also specified by the
manufacturer but typically 0.01C). Normally, C represents the battery's
capacity in coulombs. However, in this context, C is a rate in coulombs
per second (amperes) that is numerically equal to C.... |
|
Simple Circuit Replaces and Improves on Power Modules at Less Than Half the Price: DN347 - Design Notes (Linear Technology) (app note added 1/06) |
|
Simple DC Adapter
Power Supply: (Electronic circuit added 4/05) |
|
Simple DC/DC
converter increases available Power in dual Voltage system: 01/08/04 EDN Design Ideas / (added 1/05) The schematic in Figure 1 shows a way to increase the power available from a current-limited 5V supply by adding power from a
-5V supply. The dc/dc converter generates a single 12V, 150-mA (1.8W) output from two regulated and current-limited input sources at 5V, 300 mA (1.5W) and -5V, 300 mA (1.5W).... |
|
Simple High Efficiency Isolated Flyback Supply Without Optoisolator: DN1011
- Design Notes (Linear Technology) (app note added 1/06) |
|
Simple Method
to Reduce DC Power Consumption in CDMRF Power Amplifiers Through the LMV225 and an Efficient Switcher:
National Semiconductor - Application Note (app note added 2/06) |
|
Simple Power
Supply fits into small spaces: 11/13/03 EDN Design Ideas / (added 1/05) 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. Figure 1 shows a simple and cost-effective solution that combines a voltage inverter and a
voltage ...... |
|
Simple
Power Supply: (Electronic circuit added 4/05) |
|
Simple
Regulator has one Active Part: 03/16/95 EDN-Design Ideas / (added 03/03)
|
|
Simple Regulator Provides ±12V: 10/23/97 EDN 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 |
|
Single cell flashes White LED: 12/11/03 EDN Design Ideas / (added 1/05) Many portable appliances and other products that must operate from a single cell are restricted to working
at very low voltages. It is thus difficult to drive white LEDs that typically have a forward voltage of 3 to 5V. The ability to flash the LED with a supply voltage as low as 1V presents
additional complications.... |
|
Single LTC1149 Delivers 3.3V and 5V at 17W: DN72 - Design Notes (Linear Technology) (app note added 1/06) |
|
Single
NiCd Cell Drives OpAmp: 12/05/96 EDN-Design Ideas / (added 3/03)
|
|
Single
Resistor Improves V2 Converter: 08/15/97 EDN-Design Ideas / (added 3/03) -- V2 control
offers a significant improvement in transient response by using two voltage feedbacks, example circuit is for generating voltages in1.8-3.3V range |
|
Solar Cell Converter
offers Positive Start up: 08/15/96 EDN Design Ideas / Schematic / circuit added 10/02)
|
|
Soldering surface
mount components: Coilcraft - Power Magnetics Application Note - (app note added 6/06) |
|
Some Thoughts on DC/DC Converters: AN29 - Linear Technology - This note examines a wide range of DC/DC converter applications. Single inductor, transformer, and switched-capacitor converter designs are
shown. Special topics like low noise, high efficiency, low quiescent current, high voltage, and wide-input voltage range converters are covered. Appended sections explain some fundamental
properties of different types of converters. |
|
SOT-23 DC/DC Converters Generate Up to ±35V Outputs and Consume Only 20µA of Quiescent Current: DN223 - Design Notes (Linear Technology) (app note added 2/06) |
|
Stability and Transient Analysis of the Miller-Compensated Linear Regulators on the ADP3178: AN-593 - Analog Devices Application Note (app note added 6/06) |
|
Startup and Over-shoot Design Solutions - MP1580 - DN0002: Monolithic Power Systems, Inc - Design Note
- (added 6/06) |
|
Stresses in Wide Input DC-DC
Converters: National Semiconductor - Application Note (app note added 2/06) |
|
Super wide bandwidth
power splitters (ZN2PD2-50, ZN4PD1-50) AN-10-003: Application Note - MiniCircuits.com (app note
added 6/06) |
|
Supply converts
5V to 48V: 11/24/99 EDN Design Ideas / (added 2/06)
|
|
Supply Derives 5
and 33V from USB Port: 12/20/01 EDN Design Ideas / (added 12/04) The circuit in
Figure 1 derives its power from a USB port and produces 5 and 3.3V supply rails for portable devices, such as digital cameras, MP3 players, and PDAs. The circuit allows the port to maintain
communications while, for example, charging a lithium-ion battery. IC2 boosts the battery voltage, VBATT, to 5V, and IC3 buck-regulates that 5V output down to 3. ... |
|
Supply uses ac
to generate 5V Power on reset: 05/16/02 EDN Design Ideas / (added 2/05) The need
often arises for a low-cost logic supply for powering microcontrollers and related circuitry in "white-goods" products, such as industrial controllers and sensors. These applications usually
include 24 or 115V ac or higher levels of ac voltage for conversion to 3.3 or 5V dc. The simplest approach to generating low-current logic-supply levels is to apply the rectified and filtered
ac in...... |
|
Supporting Legacy 5 V SIM Cards with the ADP3408 and ADP3522: AN-678 -
Analog Devices Application Note (app note added 2/06) |
|
Switched capacitor Regulator Provides gain: 03/13/98 EDN-Design Ideas /
(added 06/03) / PDF contains multiple circuits - scroll to find this circuit |
|
Switched-capacitor converter suits portable applications: 08/17/00 EDN-Design Ideas / (added
11/05) |
|
Switched-Capacitor Integrator: we can strap this circuit onto the front end of an opamp to create the basic building block of many filter circuits - the integrator. However, the major obstacle to
happy filtering is the mine field of stray capacitance. These uncontrolled strays can add significant capacitance to the switched capacitor, destroying the accuracy of your desired filter
response. But, help is on the way! By slightly modifying the way the capacitor is switched, the simulated resistor becomes immune to the surrounding strays.... (Electronic schematic design
added 02/05) |
|
Switched-Capacitor Low Pass Filters for Anti-Aliasing Applications: DN16 -
Design Notes (Linear Technology) (app note added 1/06) |
|
Switching Converter uses Planar Magnetics: 11/07/96 EDN Design Ideas / (added 06/03)
|
|
Switching solenoid Driver: (Electronic circuit added 4/05) |
|
Switch-mode
supply draws 43-mW standby power: 06/10/99 EDN-Design Ideas / (added 2/06)
|
|
Synchronized Regulator Produces Coherent Noise: 03/17/94 EDN-Design Ideas / (added 03/03) By using a
gated-oscillator architecture instead of a clocked-PWM one, gated-oscillator-type switching regulators permit high efficiency over extended ranges of output current. This architecture
eliminates the housekeeping currents associated with the continuous operation of fixed-frequency designs. Gated-oscillator regulators simply self-clock at whatever frequency is necessary to
maintain the output voltage. Typically, loop-oscillation frequency ranges from a few hertz to the kilohertz region, depending on the load.... |
|
System Oriented
DC-to-DC Conversion Techniques: National Semiconductor Application Note 01 May1998 (app note added
7/02) |
