Gate Boost Solar Engine:  Voltage-Controlled Solar Engine: The "Gate Boost Solar Engine" is a new (6/2002) Wilf Rigter 1381-based design. This uses an internal voltage doubler to turn on a FET more efficiently.   (added 11/05)

Get Just Enough Boost Voltage:  05/27/04 EDN Design Ideas  / (added 11/05)  Adding a current-mirror circuit to a typical boost circuit allows you to select the amount of boost voltage and to ensure a constant difference between the input and the output voltages (Figure 1). This circuit is useful for high-side-drive applications, in which a simple voltage doubler is unacceptable because of the voltage range of the components involved or where the input voltage can vary ...

Get more Power with a Boosted triode #1:  04/03/03  EDN-Design Ideas / (added 02/05) Even though 6L6 beam-power tubes have been around for 66 years, they are still quite popular for use in electric-guitar amplifiers, and its cousin, the 6CA7 (EL34) power pentode, is a favorite among audiophiles. The developers of these tubes designed them for pentode-mode operation, and they deliver maximum audio power in this mode...

Get more Power with a Boosted triode #2:  06/12/03 EDN Design Ideas  /  (added 02/05)  This Design Idea is a reprint of an earlier one that contained errors in graphics (Reference 1). Even though 6L6 beam-power tubes have been around for 66 years, they are still quite popular for use in electric-guitar amplifiers, and its cousin, the 6CA7 (EL34) power pentode, is a favorite among audiophiles....

High Efficiency 2-Phase Boost Converter Minimizes Input and Output Current Ripple:  DN371 -  Design Notes (Linear Technology)  (app note added 1/06)

High Voltage Amplifier uses simplified circuit:  10/14/04 EDN Design Ideas  / (added 5/05)  Many scientific instruments and sensors need ac high-voltage drive. High-voltage drive is useful for driving electrodes in many applications. The challenge is to boost the output of a conventional op amp to high voltages. Available ac high-voltage amplifier modules are limited to approximately 1200V p-p.

Improved Kelvin contacts boost Current sensing accuracy by an order of magnitude:  02/17/05 EDN Design Ideas  / (added 5/05)  Many power-supply designs rely on accurately sensing the voltage across a current-sense element. Multiphase regulators use the sense voltage to force current sharing among phases, and single-phase regulators to control the current-limit setpoint. As internal complexity and clock speeds increase, processors impose narrower operating margins for power-supply voltages and currents, which in turn m...

Improved Power MOSFETs Boost Efficiency In A 35kw Single Phase Pfc:  This paper charts the technological evolution of APT’s powerMOSFETs from the earliest PowerMOS IV designs to the latest PowerMOS 7TM products. The improvement in performance of a 3.5kW boost converter equipped in turn with different generation products is evaluated, as well as the influence of various MOSFET package styles on thermal behaviour and potentially harmful overvoltages. Application Note Microsemi APT0101 ( app note added 4/08)

Inductorless Switching Regulator Boosts Input Voltage:  Maxim Application Note #5 (app note added 7/03)

Inductorless Voltage Converter Boosts a Single Lithium Cell:  Maxim Application Note #1791 (app note added 6/06)

LED Boost Switcher: Single AA Cell Powers Two LEDs at Constant Current :  (added 2/05)

LED Headlamps :  This article includes circuits of DC-DC LED drivers step downs to run LEDs on less than Battery Volts, Boost for above. (added 4/02)

Linear Technology Magazine Circuit Collection Volume IV:  AN84 - Linear Technology - Application Note 84 is a collection of "power circuits" from the years 1996 through 1998 as seen in the pages of Linear Technology magazine. This Application Note collects circuits that can output tens of amps to circuits that can operate a handheld device for several years. In addition to a wide variety of traditional power supply circuits (Buck, Boost, Inverting, Flyback, Linear Regulators, etc.) we include circuits for charging batteries, several Power Management circuits as well as circuits that highlight a very low noise switching regulator.

LM2623 General Purpose, Boost Converter Circuit:  National Semiconductor - Application Note   (app note added 7/06)

Low Cost Boost Converters using LM3578A:  National Semiconductor - Application Note   (app note added 2/06)

Low cost feedback circuit Boosts efficiency:  01/21/99 EDN-Design Ideas / (added 11/05)  To implement a step-up converter with a current output, designers often simply connect the load in place of the top resistor in a resistive-divider feedback network. The bottom resistor then serves as a current-sense resistor. Though simple, this approach is inefficient. Low efficiency results from the relatively high sense voltages—usually, 1.25V but as high as 2.5V for some ICs. A switch-mode dc/dc converter configured as a 20-mA current source minimizes the efficiency loss by lowering the sense voltage to 200 mV (Figure 1). Advantages of this circuit include the factor-of-six gain in efficiency; minimal board area; and readily available, low-cost components. Applications include battery charging, LED drive, and general-purpose current sources....

Low Cost Switcher Converts 5 to 24V:  02/16/98 EDN-Design Ideas / (added 3/03)   -- Low-cost, three-transistor low power boost switching regulator

Low Noise Step Up Supply Generates ­5.5 Volt Output:  10/09/97 EDN-Design Ideas / (added 3/03)  

LT1070 Design Manual:  AN19 - Linear Technology - This design manual is an extensive discussion of all standard switching configurations for the LT1070; including buck, boost, flyback, forward, inverting and "Cuk." The manual includes comprehensive information on the LT1070, the external components used with it, and complete formulas for calculating component values.

LT1074/LT1076 Design Manual:  AN44 - Linear Technology - This note discusses the use of the LT1074 and LT1076 high efficiency switching regulators. These regulators are specifically designed for ease of use. This application note is intended to eliminate the most common errors that customers make when using switching regulators as well as offering insight into the inner workings of switching designs. There is an entirely new treatment of inductor design based upon simple mathematical formulas that yield direct results. There are extensive tutorial sections devoted to the care and feeding of the Positive Step- Down (Buck) Converter, the Tapped Inductor Buck Converter, the Positive-to-Negative Converter and the Negative Boost Converter. Additionally, many troubleshooting hints are included as well as oscilloscope techniques, soft-start architectures, and micropower shutdown and EMI suppression methods.

LT1339 Design Manual:  AN73 - Linear Technology - This application note contains detailed design information to allow the reader to craft switching regulators using the LT1339 high power synchronous DC/DC converter. The note provides expanded pin descriptions for the LT1339 as well as easy-to-use graphical tools for the design of high power synchronous buck and boost converters. The manual includes extensive information on the LT1339 and the external components used with it along with formulas and/or graphics to calculate component values.

LT1370: A 500kHz 6a Monolithic Boost Converter:  DN183 -  Design Notes (Linear Technology) (app note added 6/06)

LT1619: Tiny Boost Controller Provides Efficient Solutions for Low Voltage Inputs:  DN255 -  Design Notes (Linear Technology) (app note added 1/06)

LTC1871 No Rsense Controller is Small and Efficient in Boost Flyback and Sepic Applications:  DN296 -  Design Notes (Linear Technology) (app note added 1/06)

LX1741/LX1742 Boost Converter Design Hint (See Also DN-099A and DN-099B)-(AN-22):  Application Note 22 from Microsem  (app note added 6/06)