dapj Tech

An online EE Resource centered around Electronics Engineering Technologies. Product Design, Instrumentation and Automation.

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Monday, November 02, 2020

EE Resource Sites

The EE Resource Sites has been updated. These lists are now over a decade old. Many Broken Links have been removed. Some Resources that were listed have moved to the blogs.

EE Resource Sites

Electronics Engineering Reference Resources

Electronics 1 - Hobby or DIY Electronics and Electronic Engineering Design.

Electronics Hobby or DIY Electronics and Electronic Engineering Design go hand in hand. Many inventions, discoveries and improvements in this technology has been done by Non-Engineers who acquired skills and built firms that created many positions for engineers to work in....

Ham Radio Enthusiasts improved the Communication Awareness and Science of RF Circuits. Now Communication Systems are built on Embedded Systems. In every niche of electronics, Microcontrollers, SoC and DSPs have become indispensable.

Understanding the behavior of Electronic Components. Learning the usage of Mechanical Tools and Equipment to build or manufacture Electronic Products or Prototypes. Mastering the use of the Test Bench and Test Instruments like the Scope and DMM. All these constitute the total skill set in electronics. 

Power Supplies and SMPS

Here are power supply, inverter, drives, chargers and high current equipment diagrams and links. There are Mosfet and Thyristor circuits too.

Power Electronics Section

Power Supplies, Inverters, UPS, Chargers, Electro Plating, Precision Welding-erosion, Coating Metals and many other Processes are made of high current circuits. Even in measurement of parameters like Micro-Ohm high currents are involved. Electronic Circuits are required in such products to give control to time, current, frequency and voltage in order to accomplish with the required precision a process or job.

In any power equipment, efficiency and reduction of bulk is crucial so SMPS and high frequency control is an important part of this domain. These products also generate EMI-RFI. Product Safety Study is also vital.

Power Electronic Circuits.

Basic Power Supply Designs - AC and DC voltage Regulators, Battery Backup Power Supplies. Battery Chargers, UPS and Inverters. Dual regulated Power Supplies. 5V and 12V Regulators. Benchtop Power Supplies.

Power Electronic Circuits.

Power Supplies Section.

Switching Supplies and SMPS - Circuits of SMPS, Power Supply, Switch Mode Power Supply are here. High Voltage Power Supply concept. DC Regulated 3 Pin Power Supplies like 7812 and 7805. Workbench Supplies.
Solid State Relays - SSR.

Here are many Types of SSR or Solid State Relays. In this section you will find SSR designs and PCB layouts which you can study. These were made and sold by me years ago. So the PCB layouts have gone thru some revisions and they worked quite well.

High Energy Circuits

High Energy Power Circuits, Thyristor controls like AC and DC Drives, HV power Design, UPS and Mains Power Inverter. SCR control and Battery Chargers.

Sunday, November 01, 2020

Happy New Twenty Fifteen

delabs circuits has been made Responsive. Tablet Computers, Laptops, Netbooks, Notebooks and Desktops will render most of delabs and dapj blogs/sites correctly. Other Devices like Smartphone and SmartTV are partially supported.

All blogs and sites of delabs are now SSL it looks like https://. That means more Security and Privacy. We have also removed most of third party scripts and social media links for the same reason.

These will be no New Year Card for 2021. Please Reuse the one below.  Wish all of you a Safe and Sensible 2021. Give importance to Nature, Environment, The Flora and Fauna. 

Protect and Preserve, Renovate, Revive and Resurrect Hills, Mountains, Lakes, Ponds, Rivers and Streams. If these deteriorate then the end of Mankind is certain.

Happy New Twenty Fifteen

Happy New Twenty Fifteen
 

Welcome an Era of new ways of Embedded Systems in Device Communication and Interface.