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Logic PSU with OverVoltage
Protection - 6 volt regulated power supply for TTL and
74LS series integrated circuits, includes output Overvoltage fault protection. . . [Andy Collison, designer]
Logic
reduces EMI - 08/05/99 EDN Design Idea A
current-input ADC whose primary use is measuring low-level signals from photodetectors can also measure a
range of voltages using the circuit in Figure 1. The main component is a dual-input current-integrating ADC,
IC1. IC2 and. . . [by Eugene Palatnik, BCI International, Waukesha, WI]
Logic-Level Signals Shifted
to Dim-48-V LED Driver - The main source of power in a
telecommunications system is -48 V. This source’s negative polarity and its large magnitude with respect to
ground pose a challenge when designers want to use low-power ICs in the telecom. . . [Ahmad Ayar-Circuit
Designer]
Low
Cost Digital Code Lock - . . .
Low Cost USB MicroController Programmer the Building of the Pickit™ 1 Flash
Starter Kit - Application Note Published 7-Jul-03. . .
[Microchip]
Low Frequency Magnetic Transmitter Design - Application Note Published 18-Oct-02. . . [Microchip]
LOW OHM Digital Meter - They Measure from: 0. 001 to 1. 999
Ohms, or from: 0. 01 to 19. 99 Ohms. . . [G.L. Chemelec, designer]
Low Power Technology LPT 3.3V Logic
LCX & Fct3 Logic - Application Brief # 002. . .
[Pericom Semiconductor]
Low speed implementation for
LightScribe/AN-4144 - Fairchild App Note - . . .
Low-Cost AVR Programmer - To program some AVR microcontroller unit (MCU) you will need an AVR programmer. The better
way to do that, is to buy some development kit like STK-500. This kit have the advantage to give you serial
port, LCD connector, SRAM socket, 8 switches, 8 LEDs, connectors for all of the ports of MCU and more, to one
board. I suggest to beginners, to start working with STK 500 or some else development system, it will help
them very much. For the people that are want to program only one piece of AVR, to make some circuit from this
site and they don't want to spend money for any development kit, the solution is this ultra low-cost AVR
programmer. . .
Low-Cost Digital
Temperature Indicators - File contains several designs,
please scroll to find this circuit. . . [Analog Devices-Analog Dialogue by Castelli, Steve and Goodenough,
Frank]
Low-Cost relative-humidity
transmitter uses single logic IC - 11/08/01 EDN Design Idea The
low-cost percentage-relative-humidity radio transmitter in Figure 1 operates in a cold-storage warehouse for
vegetable storage at temperatures of 1 to 5°C. It is generally difficult to collect such data from a
low-temperature ar. . . [by Shyam Tiwari, Sensors Technology Ltd, Gwalior, India]
Low-Noise AC Amplifier has digital control of gain and bandwidth - 02/05/04 EDN Design Idea In low-noise analog circuits, a high-gain Amplifier serves at the
input to increase the SNR. The input signal level determines the input-stage gain; low-level signals require
the highest gain. It is also standard practice in low-. . . [by Philip Karantzalis, Linear Technology App
Note, Milpitas, CA,
Low-Power Design using Picmicro MicroControllers - Application Note Published 7-Oct-05. . . [Microchip]
Low-voltage
interface circuits translate 1.8 to 5V - 11/05/98 EDN
Design Idea (Several circuits here, scroll to find this one) Interfacing two systems that operate at two
arbitrary voltages is a challenging problem; there is no guarantee that one side operates at a voltage higher
than the other side. Usual. . . [by CC Poon and Edward Chui, Motorola SPS, Hong Kong]
Low-voltage reset
operates below 2.7V - 03/26/98 EDN Design Idea (Page
has several Design Ideas, scroll to find this one) New personal digital assistants, pagers, and other
battery-powered systems operate at or below 2. 7V, but power-on resets with thresholds below 2. 6V are not
commonly available. You can resolve this problem using a circuit that combines a 1. 2V reference and a
micropower regulator (Figure 1a). IC1 integrates these two functions in a tiny SOT-143 package. A
power-on-reset function must become active before the supply voltage reaches its nominal value, and IC1
operates properly for supply voltages above 1. 21V. . . [by Bob Kelly, Maxim Integrated Products, Sunnyvale,
CA]
LTC3634 Dual 15V, 3A Monolithic Step-Down
Regulator for DDR Power - The LTC®3634 is a high
efficiency, dual-channel monolithic synchronous step-down regulator which provides power supply and bus
termination rails for DDR1, DDR2, and DDR3 SDRAM controllers. The operating input voltage range is 3. 6V to
15V, making it suitable for point-of-load power supply applications from a 5V or 12V input, . . . [Linear
Technology App Note - , Jeff Gruetter-Senior Product Marketing Engineer Sep 21st 2011]
LTC3676 8-Output PMIC for Application
Processors-Video Product Brief - The LTC®3676 is a
complete power management solution for advanced portable application processor-based systems. The device
contains four synchronous step-down DC/DC converters for core, memory, I/O, and system on-chip (SoC) rails
and three 300mA LDO regulators for low noise analog supplies. The LTC3676-1 has a ±1. 5A . . . [Linear
Technology App Note - , Steve Knoth-Senior Product Marketing Engineer, Power Products Oct 24th 2013]
LVTC Logic Family for Live-Insertion
using Standard CMOS Processing - Application Note #
062. . . [Pericom Semiconductor]
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