Tiny Versatile Buck Regulators Operate from 3.6V to 36V Input - DN367 Design Notes__ Linear Technology/Analog Devices Touch Switch 240VAC - This is another capacitance based touch on/touch off switch, which can control power to a 200 watt 240vac load . . . Hobby Circuit designed by David Johnson P.E.-July, 2006
Twin T power oscillators work as DC-biased AC sources - 9-Apr-09 EDN Design Ideas: Using a frequency-selective twin-T network and the LT3080 linear regulator, you can achieve a low-distortion twin-T oscillator with power-driving capability Design by Tiger Zhou and Robert Dobkin, Linear Technology, Milpitas, CA
Two AA cells power step-down regulator - 01/07/99 EDN Design Ideas: (Scroll to find this one) DC/DC conversion is particularly challenging when both the input and output voltages are low. Step-up ICs that operate with inputs lower than 1V are available, but step-down ICs that accept input voltages Page includes several designs. Design by Len Sherman, Maxim Integrated Products, Sunnyvale, CA
Two Phases to Cut Current & Improve EMI - 11/12/09 EDN Design Ideas: in DC/DC-converter applications in which the input voltage may be lower or higher than the output voltage, you can use either a flyback converter or a SEPIC (single-ended-primary-inductor converter). SEPIC
offer lower input-curre Design by Goran Perica, Linear Technology App Note, Milpitas, CA
Two transistor regulators - a theoretical discussion __ Designed by Richard Torrens
Ultra Low Drop Linear Regulator - The circuit is a MOSFET based linear voltage regulator with a voltage drop of as low as 60 mV at 1 ampere. Drop of a fewer millivolts is possible with better...__ Electronics Projects for You
UltraFast Linear Regulator Eliminates All Bulk Tantalum & Electrolytic Output Capacitors - DN157 Design Notes __ Linear Technology/Analog Devices
Ultra-Low Dropout Regulator - DN32 Design Notes__ Linear Technology/Analog Devices
UltraLow Noise Switching Power Supplies Simplify EMI Compliance - DN316 Design Notes__ Linear Technology/Analog Devices
Ultra-low-noise low-dropout regulator achieves 6-nV/√Hz noise floor - 06/23/05 EDN Design Ideas: LDO has ultralow-noise output Design by Ken Yang, Maxim Integrated Products Inc, Sunnyvale, CA
Ultrathin dual 2.5A or single 5A μModule regulator fits on the backside of PCBs, allowing space on the topside for digital ICs - EDN Design Ideas: 09/29/2016 This versatile DC-DC excels where height is limited and multiple ganging options are advantageous Design by LTC Design Note
Understanding and Applying the LT1005 Multifunction Regulator - Linear Technology AN1 __ Designed by Jim Williams - Aug 1st, 1984
Use a switching-regulator controller to generate fast pulses - 04/13/06 EDN Design Ideas: Switching-regulator-controller ICs can deliver gate-drive pulses with rise and fall times of less than 2 nsec, making them ideal candidates for laboratory pulse-generators Design by Mitchell Lee, Linear Technology Corp
Use a Three-Phase Rectifier & Voltage Reducer for Offline Single-Phase Supplies - EDN-Design ideas -- 04/06/12 Missing diodes create gaps to allow voltage reduction. Design by JB Castro-Miguens, Cesinel, Madrid, Spain; C Castro-Miguens, University of Vigo, Spain; M Pérez Suárez, University of Vigo, Spain; and A Abal Pena, Tekplus, Vigo, Spain
Use an LM317 as 0 to 3V Adjustable Regulator - 10/02/08 EDN Design Ideas: LM317 acts as an adjustable regulator Design by Vladimir Rentyuk, Modul-98 Ltd, Zaporozhye, Ukraine
Use Two Phases to Cut Current & Improve EMI - 11/12/09 EDN Design Ideas: in DC/DC-converter applications in which the input voltage may be lower or higher than the output voltage, you can use either a flyback converter or a SEPIC (single-ended-primary-inductor converter). SEPIC
offer lower input-curre Design by Goran Perica, Linear Technology, Milpitas, CA
Variable Voltage Source - The high current regulator below uses an additional winding or a separate transformer to supply power for the LM317 regulator so that the pass transistors can operate closer to saturation and improve efficiency. For good efficiency the voltage at the collectors of the two parallel 2N3055 pass transistors should be close to the output voltage. The LM317 requires a couple extra volts on the input side, plus the emitter/base drop of the 3055s, plus whatever is lost across the (0.1ohm) equalizing resistors (1volt at 10 amps) , so a separate transformer and rectifier/filter circuit is used that is a few volts higher than the output voltage __ Designed by Bill Bowden
Video Design Idea: Buck regulator controls white LED with optical feedback - 10/25/07 EDN-Video Design ideas - By using optical feedback, you can stabilize the output level of a high-intensity LED Design by Dhananjay V Gadre, Netaji Subhas Institute of Technology, New Delhi, India
Voltage Boost - in this design a marginal AC to DC linear power supply provides a voltage boost, so it can maintain regulation at low line voltages. The added components are wired at the AC input and the + DC output of an existing bridge rectifier circuit. The components act as a full wave “charge pump” which will boost the DC output voltage across the main filter capacitor C3. Without the boost circuit, when the AC line voltage drops to 105vac, the DC output voltage only reaches 11.5 volts, too low for a 12v voltage regulator. . . . Hobby Circuit designed by Dave Johnson P.E.-July, 2006
Voltage Boost to Series Regulator provided by Capacitor - This circuit adds some capacitors and diodes to a traditional transformer type series regulator circuit to extend the normal operating range. it can insure regulation during low line voltage conditions or it can squeeze a few more watts out of a plug-in-the-wall power adapter power supply . . . Hobby Circuit designed by David Johnson P.E.-January, 1998
Vxi Switching Application Note 5968-7234 - Application Note__ Aligent |