• Home
  • Articles
  • Circuit Bench
  • Mini Projects
  • Bookstore
  • Q&A
  • Newest Component

Designing and Assembling Transformerless Power Supplies (ART604E)

Transformerless power supplies, or FAST for short, or simply transformer less power supplies, are very useful in low-consumption projects that must be connected to the power supply network, as they eliminate the need for an expensive and bulky component, the power supply transformer. How to design and assemble this type of source is what we will see in this article, which is very useful for those who need sources of up to 12 V with maximum output currents of around 50 mA.

Insect Robot (MEC217E)

Insects have always aroused some kind of reaction in humans: curiosity, fear, disgust, etc. The fact is that these "little" beings are objects of study by many biologists and also by "mechatronic scientists". The latter research mainly their locomotion, and their way of recognizing the environment (sensors), among others. The robot which we propose in this article is relatively simple to build and can help the reader to better understand the possible means of locomotion without "wheels" in Robotics.

Climber Robot (MEC218E)

How about assembling a robot that has a special shape to move around? Instead of wheels, belts or even "legs" to get around, this robot uses claws and its own body to perform its movements. It was not designed to move on the floor, but in "heights". An excellent project for demonstrations at fairs, events and meetings.

FOX Wireless Control System (TME006E)

FOX is a new building automation system from F&F. Thanks to the products in this series, you can create an intuitive, remotely controlled system in your home or office. The system works on the basis of a local Wi-Fi network or an F&F cloud, but devices can also be controlled in a more traditional way, by using buttons on the wall, without a wireless network connection (e.g. in case of router failure).

ADR-1 Robot (MEC217E)

The ADR-1 (or "Walker-1") is a very simple robot, easy to build and program. And its cost is very affordable. Basically, the robot moves in a fixed direction (forward) and, when encountering (touching) an obstacle, it deviates. For this, it uses "sensors", keys which when pressed "inform" about the position of the obstacle to the "brain". This then prepares the deviation with a slight return, pointing in the opposite direction to the touch. After this move, the ADR-1 continues its "journey" straight ahead until it encounters another obstacle. Below we show two versions of the robot.

Ionic Motor (MEC219E)

Experiments and projects using high voltage have always been fascinating. The main objective of the project described here is to build a fantastic engine, called an ionic motor. Such engines are now used in low-power operations in space and probably will power large spacecraft in the future. Many other projects and experiments can be performed using this same basic circuit.

  

Latest

  • Texas Instruments CD74HC30 8-Input NAND Gates
  • Vishay / Sfernice M61 3/8" Square Single-Turn Cermet Trimmers
  • Vishay / Sfernice TSM41 4mm Square SMT Miniature Trimmers
  • Banner Engineering QM30VT3 3-Axis Vibration Sensors

Circuit Bench

  • Signal Tracer (CB22217E)

      Using old germanium transistors like the CK722, this circuit has good gain. We found it in a...

  • Controlled CMOS Intermittent Oscillator (CB19229E)

      With the values of the components used in this circuit, the signal produced is 800 Hz rectangular with...

  • OR port gate relay (CB21030E)

      We found this circuit in an American brochure from the 90s. In it we have the way to implement a 4-input...

Buscador de Datasheets



N° de Componente 

Institute Newton C. Braga - 2015 - 2025 ©