Versatile Micropower Voltage Reference Provides Resistor Programmable Output from 0.4V to 18V - DN351 Design Notes__ Linear Technology/Analog Devices
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
Video Design Idea: Build your own laboratory precision voltage reference - 05/24/07 Video Design ideas-EDN Mark Thoren, mixed-signal application engineering manager with Linear Technology, demonstrates an amplifier-based Circuit design for a relatively inexpensive precision voltage source. Design by Mark Thoren, mixed-signal application engineering manager with Linear Technology
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
Voltage Converter - Similar to the system used in modern aviation where an antenna array modulates the phase of an incoming signal. The commercial system is known as Commutated Aerial Direction Finding (CADF) where a ring of 18 identical antennas are each switched on in sequence, just like winding a rotary switch round and round so that one antenna is always connected to the receiver. __ Designed by Harry Lythall-SM0VPO
Voltage Converters-0.5 to 6 Volts - Conventional silicon transistors just can't operate at voltages less than about 0.7v. Old germanium transistors could be used, but those are hard to find these days and most are rather large in size. Some new n-channel MOSFET devices with very. . . Circuit by Dave Johnson P.E.-May, 2007
Voltage Difference Magnifier - NOTE: Must register on this site __ Designed by Published in Elecktor July/Aug, 2010
Voltage doubler - this circuit rougly doubles the voltage of the input, however the current output is low. doubled output is at 'V source. ' __ Designed by Andy Wilson
Voltage doubler improves accuracy - 5-Feb-09 EDN Design Ideas: A transistor's low saturation voltage results in less loss Design by
Chekcheyev, Tiraspol, Moldova
Voltage Doubler uses Inherent Features of Push-Pull DC/DC Converter - 08/16/07 EDN Design Ideas: Paralleled Darlingtons drive a wide-range voltage doubler Design by Ajoy Raman, Aeronautical Development Establishment, Bangalore, India
Voltage Inverter using 555 Timer - Simple and inexpensive circuit can produce a dual (positive and negative) voltage from a single supply input, extremely useful for powering OpAmp and other circuits that require a dual voltage from a single battery. __ Designed by Aaron Cake
Voltage Level Translator-23001.0 - Circuit ideas for Designers App Note__ Advanced Linear Devices, Inc
Voltage Limiter Generates Supplies that Improve Standard Diode Technique - Some systems require a voltage limiter to protect the input circuit. Designers can connect diodes to V CC and Gnd to create a simple solution (Fig.1). This simplicity, however, comes at a __ Designed by Yossi Barkan
Voltage Reference Collection - AN42 A wide variety of voltage reference circuits are detailed in this extensive guidebook of circuits. The detailed schematics cover simple and precision approaches at a variety of power levels. included are 2 and 3 terminal devices in series and shunt modes for positive and negative polarities__ Linear Technology/Analog Devices
Voltage reference improves JFET - 26-Oct-00 EDN Design Ideas: The common JFET current-source in Figure 1a has average output impedance and depends heavily on the JFET's VP and iDSS variations. These manufacturing variations limit the initial accuracy of the current setpoint that the circuit can obtain with a fixed R1. Most users of JFET current-sources sample VPPDF has several circuits, scroll to find this one Design by Clayton Grantham, National Semiconductor, Tucson, AZ
Voltage reference is software-programmable - 08/18/05 EDN Design Ideas: Obtain extra reference voltages from existing ones Design by Reza Moghimi, Analog Devices, San Jose, CA
Voltage reference sets current limit - 11/19/98 EDN Design Ideas: NOTE: File contain several designs. Scroll to find this one. Power op amps have a real need for active output-current limiting. Most power-amplifier designs rely on the voltage drop across a user-supplied sense resistor to turn on an internal transistor. This method has several drawbacks, notably, an inability to change the current-limit point under program control. The current-limit circuit in Figure 1 allows you to establish the setpoint by applying a voltage to one of the amplifier's pins. Design by Joe Engle, Burr-Brown Corp, Tucson, AZ
Voltage Reference Stabilizes Current Sink - 18-Feb-10 EDN Design Ideas: Produce a stable current for long-term component testing - Analog circuits for long-term testing of passive components, such as 0.1%-tolerant resistors or high-intensity white LEDs, often require a constant current. Using two op amps and a voltage reference, you can develop a circuit that provide as a constant-current sink with a variable setting of 0 mA to 0.99A. The circuit in Figure 1 sinks a stable current through the load. The load current is insensitive to power-supply-voltage variations. Design by Suded Emmanuel, Emmanuel’s Controls, Auckland, New Zealand
Voltage Regulator - A collection of simple but useful circuits made with silicon diodes. Scroll to find the voltage multiplier circuit. __ Designed by Jose Pino
Voltage Regulator controls scanner Lamp brightness - 05/13/99 EDN Design Ideas: An image-scanning device performs best when the scanner IC controls the brightness of the image reflected into the light sensors. The best way to control brightness is by adjusting the intensity, or light output, of the fluoresce Design by Chester Simpson, National Semiconductor, Santa Clara, CA
Voltage regulator for synchronous generator - Also called an AVR. __ Designed by Manfred Mornhinweg
Voltage Regulator goes Digital - 11/24/99 EDN Design Ideas: Power consumption and failing batteries are key issues in battery-operated applications. Features in the new generation of series voltage regulators address these concerns. For example, National Semiconductor's LP2951 micropower voltage regulator provide as a logic-level output signal indicating a low regulated Design by Chuck Wojslaw, Xicor Inc, Milpitas, CA
Voltage Regulator w/ Series-Pass Transistor - What is the function of a voltage regulator circuit? it’s basically this, maintain a precise voltage regardless of the current drawn by the load. Three basic components are needed to achieve good voltage regulation (spice design) __
Wide Input Range High Efficiency DDR Termination Power Supply Achieves Fast Transient Response - DN281 Design Notes__ Linear Technology/Analog Devices
Wide-range regulator Delivers 12V, 3A output from 16 to 100V source - 06/23/05 EDN Design Ideas: Buck regulator tackles high input voltages Design by Wayne Rewinkel, National Semiconductor, Schaumburg, IL
Wide-range voltage regulator automatically selects operating-mode - 06/09/05 EDN Design Ideas: Regulator seamlessly adapts to wide output range Design by Joel Setton, Crolles, France
Zener Diode Voltage Regulator - Make a simple zener diode voltage regulator, . __ Designed by REUK-Renewable Energy UK website |