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Thursday, June 21, 2018

Nuts and Volts DIY Magazine

Online edition of US print magazine Nuts and Volts. Aimed at the electronics hobbyist, with articles covering amateur radio, cellular communications.

Nuts and Volts DIY Magazine
 
Nuts & Volts is written for the hands-on hobbyist, design engineer, technician, and experimenter. The diversity of subjects appeals to all levels of experience and spans such topics as amateur robotics, circuit design, lasers, computer control, home automation, microcontrollers, data acquisition, new technology, DIY projects, electronic theory, and more, not to mention the popular BASIC Stamp.

Adding More Digital I/O to your 16-Bit Experimenter Kit 

16-Bit Experimenter Kit - Nuts and Volts
If you’ve been following the 16-Bit Micro Experimenter series in Nuts & Volts, you are already familiar with its solderless breadboard environment and the fully programmable 10 line I/O expansion bus that comes with the kit. The 10 lines can be assigned to be digital, analog or even connected to any of the PIC24F Microcontroller’s internal extensive peripheral set (i.e. dual UART, five CCP modules, ADC, Real time Clock Calendar, dual SPI, and dual I2C).

The Mini-Bench Supply

A small power supply with +5V, +12V, and -12V outputs is a handy thing to have around when you’re breadboarding circuits with both op-amps and digital ICs. You would want a switching regulator for efficiency, but linear regulators for low noise. Plus, it should be easy to build and relatively inexpensive.

The Mini-Bench Supply

Saturday, June 09, 2018

AD8436 - Low Cost RMS to DC Convertor

This chip from Analog Devices  computes a precise dc equivalent of the rms value ac waveforms, including complex patterns such as those generated by switchmode power supplies and triacs.

AD8436 - Low Cost RMS to DC Convertor

There is an evaluation board available to study its performance.

AD8436 - Low Cost RMS to DC Convertor

Delivers true RMS or average rectified value of an AC input and Fast is settling at all input levels.It is an Accurate conversion with crest factors up to 10.

AD8436 - Low Cost RMS to DC Convertor

Typical application for frequencies as low as power line, and above. The recommended averaging, crest factor and LPF capacitor values are 10 μF, 0.1 μF and 3.3 μF.

Other Features
  • Accuracy: ±10 µV ± 0.5% of reading 
  • 100 µV rms to 3 V rms (8.5 V p-p) full-scale input
  • 1 MHz for -3 dB (300 mV) 
  • 65 kHz for additional 1% error 
  • Zero converter dc output offset 
  • Low power: 300 µA typical at ±2.4 V

Thursday, June 07, 2018

Marvell Technology Group - Semiconductor Design

Fabless semiconductor provider of application-specific standard products, these are used in storage, communications and consumer electronic products.

Marvell Technology Group - Semiconductor Design

Products include system-on-a-chip (SoC) devices using its IP base of analog, mixed-signal, digital signal processing and also embedded RISC-ARM solutions. They have chips for Ethernet, Cellular-Mobile, Tablets and Portable Electronic Devices.

Marvell Technology Group - Wi-Fi Microcontroller Platform

Wi-Fi Microcontroller Platform

Marvell's development boards support easy evaluation, software development, and hardware prototyping. Contact your Marvell sales representative to obtain one.

ARMADA family of application processors

Marvell's CPUs deliver higher performance and lower power dissipation while providing full software compatibility to all ARM-based applications. ARAMADA is suitable for many applications such as netbooks, smartphones, and intelligent connected displays.

Marvell Technology Group
5488 Marvell Ln, Santa Clara, CA 95054, USA.