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Скачать Elektor July - August 2005 бесплатно


Elektor July - August 2005
English | PDF | 40 MB

• Negative-Output Switching Regulator
• Converting a DCM Motor
• Solar-powered SLA Battery Maintenance
• Simple Window Comparator
• Simple Stepper Motor Driver
• Extension for LiPo Charger
• Resistor-programmable Temperature Switch
• PCI Express
• Vehicle Diagnostics using OBD-2
• OBD-2 Analyser
• Chip Tuning
• Signal Wizard v.2. from UMIST
• FT369 One-Chip Servo Controller
• Gigabit Crossover Cable
• Toslink Repeater/Splitter
• Optical Mixer
• Mobile Phone Operated Lock
• Minimalist Microcontroller
• Energy-saving switch
• Overcurrent Cutout Switches
• Audio Click/plop Suppressor
• Simple Oscillator / Pipe Locator
• IR Testing with a Digital Camera
• Proximity Switch
• Discharge Circuit
• Gentle Battery Regulator
• Comparing Signed Integers
• Telephone Line Watchdog
• MSP430 Programmer
• Resistor Colour Band Decoder
• Micropower Voltage Regulator
• Garage Timer
• Phantom Supply from Batteries
• Simple Short-Circuit Detection
• Swapping without a Buffer
• Reflection Light Barrier with Delay
• Cable Tester
• DRM Direct Mixer Using an EF95/6AK5
• Two-Cell LED Torch
• Hard Drive Switch
• Remote Control Blocker
• Converter IC with Integrated Schottky Diode
• Virtual Prototyping Board
• Compact 200 W Output Stage
• Protection for Voltage Regulators
• Video Sync Generator
• Luxeon LEDs
• Bidirectional I2C Level Shifter
• Extended Timer range for the 555
• Fridge Thermostat
• USB for the Xbox
• 12-V Dimmer
• Low-cost LiPo Charger
• DIL / SOIC / TSSOP Experimenting Boards
• Digital VU Meter
• 3 V Headphone Amplifier
• Servo Points Actuator
• Short-Wave Superregenerative Receiver
• Searching for Components
• Medium-Wave Modulator
• Filter-based 50 Hz Sinewave Generator
• Long-Delay Stop Switch
• Transformerless 5-volt Power Supply
• Telephone Line Indicator
• PC IrDA Port
• Carriage Detection for Model Railways
• Short-Wave Regenerative Receiver
• Improved DECT Battery Charger
• 1:800 Oscillator
• MP3 Adapter for TV
• Transistor Dip Meter
• Three-component Li-ion Charger
• DRM Double Superhet Receiver using an EF95/6AK5
• Simulator for Bridge Measurements
• Code Lock with One Button
• LED Flasher for 230 V
• On-demand WC Fan
• Simple Microphone Preamplifier for Radio Amateurs
• 9-in-1 Logic Glue / Level Translators
• Universal I/O for Power Amps
• Modifying Stripboard for SO Packages
• Remote Control using RF (transmitter)
• Cheap Dot-mode Bargraph Display
• RF remote Control Extender (Receiver)
• Simple Cable Tester
• 1 MHz Frequency Counter
• High Voltage Regulator
• PDM Pulse Generator
• Low-cost Step-down Converter
• Noise Suppression for R/C Receivers
• EE-ternal Blinker
• Slave Flash with Red-Eye Delay
• Short-Wave Converter
• PIC PWM Controller
• DVI Interface
• CCO Metal Detector
• Balancing LiPo Cells
• Plant Growth Corrector
• Valve Sound Converter
• THD: Sallen-Key versus MFB
• An Electronic Watering Can
• Precision Headphone Amplifier
• USB Power Booster
• Dual Oscillator for µCs
• Step-up Converter for 20 LEDs
• Passive 9th-order Elliptical Filter
• Adjustable Duty Cycle
• Bridge-Rectifier LED Indicator
• Stable USB power Supply
• Efficient Current Source for High-Power LEDs
• Low-drop Regulator with Indicator
• Simple Overcurrent Indicator
• Navigator Assistant


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