Desktop Power Supply Immunity

Make the desktop architecture like laptop with regards to Power Electronics. I think now RAM’s consume lower power. So every Desktop can come with a Li-ion Backpack based on some standard. 10Ahr 12V Rechargeable Battery. The entire Motherboard works on the 12V DC supply that uses Float Charging from mains.

Power Electronics & Solar Energy

The supply to computer is always derived from battery, the battery being constantly replenished. The charger also supplies power to computer board over the battery itself. Many lighting/inverter systems use this. The SMPS now is only a intelligent charger. Other voltage levels with DC/DC converters from that 12V.

Desktop Power Supply Immunity

Advantage –

1 – A user can easily upgrade the 12 V bus, another 12 V battery with smart charger; gives a boost of backup time. Probably intelligent batteries can come with built in float chargers, so that they can they can be bussed to form a 12v Tiny power grid for home which includes solar cells.

2 – When just the backpack is used, power fails. Harddisk, Monitor etc. sent to standby, low power mode. CPU then goes to quiescent state. The RAM keeps all data intact but goes to a low power mode. Alternatively quickly write a RAM image on a Flash Layer Built over RAM.

This makes the PC Impervious to Power Supply or UPS or other problems. Moves the desktop system to a 12 V standard. Drives desktop PC development to more Power Efficient designs.

Switching Supplies and SMPS

Easy integration into automobiles, bus, etc which have DC grid. Remote areas where no power is there. This will ensure desktops have a role in the future.

The charger SMPS has 1A charging current for Battery and 3A max for Computer. Total 4A max. A SuperCap can be added parallel to the Battery for Extra Inertia.

When power fails, in few seconds the system goes to standby. No program need to be closed. When power is restored they system comes up with windows and programs in the same positions of the last frozen state.

When a UPS is used, the system does not go down at all. The UPS just consists of a 10A Charger and a 12V 20AHr Battery. If the house has a 24V DC bus which is battery supported too. Then this can be used. As 24V is being developed as a new standard for internal power distribution. EMerge Alliance. The PCs also can move to this manageable and safe standard for homes.

delabs – 2010

Switching Power Supply Design –

Lazar’s power electronics corner, smps switching power supply design, circuits, schematics, pcbs, electrical engineering reference, software, and other free web resources.

Switching Power Supply Design –

SMPS design, Tutorial, PCB design, Generators, Computer PSU, UPS, Magnetics, EE Reference, Inverters, Thermal

Solar Energy Uses in Homes: Solar Guide

“When electromagnetic waves strike an object they can cause various effects, such as excitation of the molecules, excitation and ejection of electrons, and oscillation of charge carriers in the object. As the result, a portion of the radiated photons can convert to heat, electricity or chemical energy”

Solar Grid-Intertie Inverter

Solar Grid-Intertie Inverter

An inverter is basically an electronic device that takes a DC input voltage and converts it to an AC output voltage. My design takes a 12V DC input from my solar panels (two 50w panels in parallel) and converts it 120V AC at 60Hz which is the power that most home appliances use. A grid-intertie inverter connects up to and external AC power system and matches it’s internal AC sinewave to the external AC sinewave to allow the inverter to feed power into the external system.

CIPCO Energy Library – Electrical Study

Presented in a Easy to understand, layman language. This Energy and Electrical Basics is a must for all who want to save power and lead a Green Lifestyle.

Undertand your Appliance and The Energy Supplier. The way electricity is generated and reaches your home.

CIPCO Energy Library – Electrical Study

A class in basic electricity and how the electric utility industry generates and delivers power to customers. Designed primarily for use by utility field representatives who need to understand electrical principles. – Fundamentals of Electricity Covers the subject of motors from an explanation of how they work, to the advantages/disadvantages of adjustable speed drives, see Motors & Drives section.

Complete descriptive information on closed- and open-loop geothermal heat pump systems. Residential, multifamily and commercial applications are all covered. – Geothermal Heat Pump Systems

Piezoelectric Energy Harvester – V20w

Converts normally wasted mechanical energy in the form of vibrations into usable electrical energy. It uses the piezoelectric effect to generate energy from Vibrations.

Piezoelectric Energy Harvester - V20w

Piezoelectric Energy Harvester – V20w

Some sources are Machinery in Oil and Gas drilling to refining. Machines in Industry and Manufacturing. Wind, Tide, streams also can be harnesses with small fixtures, jigs or devices for vibration sensor arrays.

Applications – Wireless Sensors and small instruments need a way to recharge their lithium cells or even supercaps. Using solar and vibration harvesting, enough power can be derived to power efficient electronics. Recharge small computers and tablets.

From – Mide Technology

They are specialists in smart engineering materials technology. They create state-of-the-art solutions to uncommon engineering challenges. They are also a Engineering Service and design, develop, and test a turn-key custom prototypes.

Supercap and White LED and Energy Harvesters

This is a educative and simple example to help learn about supercaps and white LED. It will also help you understand component behavior. If you are learning electronics, try this one out.

The goldcap-Dynamo Lamp idea is a DIY Tutorial by Kainka on Electrical Energy Harvesting. What may be this EH Thing ?

Energy harvesting (also known as power harvesting or energy scavenging) is the process by which energy is derived from external sources (e.g., solar power, thermal energy, wind energy, salinity gradients, and kinetic energy), captured, and stored for small, wireless autonomous devices, like those used in wearable electronics and wireless sensor networks. – EH at Wikipedia

Then the Cycle Dynamo may not be the ideal choice for furthering this research. The reason being, this is quite a powerful source of energy, especially when going downhill!

We need a more fussy source of Electricity. Like the waves of the sea, that could splash onto Large plates of Springy Beryllium Copper Cantilevers, which moves an Array of Magnets in coils (Reverse of Solenoids). This gives Random Spurts of High Energy Pulses which have to be Harvested.

That is for you to dare and do …….. Now let me give some things you can read, before you start this epic Adventure…

Now Move ! There is so much Abundant Energy to be Harvested. You can Even Setup a Roadside Electric Trike Recharging Station.

Gomier Electric Tricycle
Gomier Electric Tricycle

We need more contests, An LED Lighting Contest and a Sponsored Elekrik Vehicle (Non-Car) Super-Contest.

LED Lighting and LED Lamp Drivers

LED Lighting is gradually replacing CFL Lamps because they are more frugal in drawing energy and last many years. These have been around for some years and the technology is progressing. Now LEDs which show the illuminated objects in their true colors (like sunlight) are also coming. Due to the green initiatives of many countries, people have become aware and also implementing these solutions. These become a necessity when you start using Solar Panels for Home Power.

LED Lighting at delabs Tech

LED Lighting and LED Lamp Drivers

The CFL lamps have reduced the use of the Filament Bulb due to lower power consumption. Now LED lamps may have to replace CFL but it is progressing. Few years ago only Conference Rooms, Media Events or Product Exhibits could afford the LED lighting, it was a Novelty. Now LEDs are affordable and Reliable Driver Solutions are also available.

The problem like in most Tech Learning Curves is now the SMPS drivers for these LED Arrays. The LEDs are reliable, but drive systems are still having problems. Cost effective drive systems from make affordable lighting possible. But due to Quality and Reliability issues, system integrators face implementation problems.

When Mitutoyo the maker of the Best Metric Tools started decades ago, it faced a tough market. In those days, Japanese Goods were known as cheap and low quality in Europe and America.

Companies like Mitutoyo, Sony, Misubishi, Hitachi and many more changed the scenario completely. Now Japan is a Symbol of High Quality and New technology Innovations. Other countries should follow this Golden Example set by Japan and its Products. Every new firm has to go thru those Stages.

A genuine long term commitment to R&D and Quality will build the reputation of Brands, Firms and entire Regions. Anyway, here are some nice resources to help build Drivers and Systems for LED Lighting.

These Semiconductors and Applications are Excellent, the driver systems have to be engineered and perfected by manufacturing and development. A casual or quick results method will backfire. Hence system integrators start by working closely with the vendor (Vendor Development) of Drive Systems. Finally deliver only systems that are Robust and Burnt in. The other option, work with know friendly customers as a Beta Testing and learning phase, till systems reliable for global deliveries.

Battery Charger and Rechargeable Batteries

The main Types of Rechargeable Batteries are NiCd – Lead Acid – NiMH – Lithium ion. The Gel Lead Acid Battery is Termed Maintenance Free and may have to be treated differently for charging.

List of battery sizes – Wikipedia

Battery Types and their Sizes

4.5 Volt – D – C – AA – AAA – 9 Volt – SR41/AG3 – SR44/AG13

Battery Charger Circuits and Resources

Solar charger for lead-acid batteries
The charger will stop charging once a pre-set voltage (temperature compensated) has been reached, and recommence charging when the voltage has dropped off sufficiently.

12 Volt Gel Cell Charger
When a discharged gel cell is connected, the charger goes into a fast charge mode at a fixed rate of 400 ma. After the chip detects the voltage leveling off or when 4 1/2 hours has elapsed.

Temperature Controlled NiCd Charger
This circuit is for a temperature controlled constant current battery charger. It works with NICD, NIMH, and other rechargeable cells.

Battery charger 150-1700 mAh with PIC16F876
This is the extension of the simple battery charger to different battery capacities. The software and the controller are largely identical.

MAX846A Cost-Saving, Multichemistry, Battery Charge Chip
In its simplest application, the MAX846A is a stand-alone, current-limited float voltage source that charges Li-Ion cells. It can also be paired up with a low-cost microcontroller (┬ÁC) to build a universal charger capable of charging Li-Ion, NiMH, and NiCd cells.

Rechargeable Batteries and Chargers
There are three types of rechargeable batteries. They are Nickel-Cadmium (NiCd), which are the oldest type; Nickel-Metal Hydride (NiMH), which were developed around the same time that low-cost digital cameras were invented.