power cast - casting its energy around

8/9/2019 Power Cast - Casting Its Energy Around

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Power CastPower Cast -- Casting itsCasting its

energy aroundenergy around

Wireless Powering SystemWireless Powering System

ByBy

D.Nagendra kumar & K.Ravi TejD.Nagendra kumar & K.Ravi Tej


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Are we totally Wireless???Are we totally Wireless???

Most devices like mobile, PDA, digitalMost devices like mobile, PDA, digitalcamera, voice recorders,MP3 players,camera, voice recorders,MP3 players,

electrical razors., etc. are not totallyelectrical razors., etc. are not totallywireless because they require wiredwireless because they require wiredpower chargers.power chargers.


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Power castPower cast

It is a innovative new technology whichIt is a innovative new technology whichenables wireless charging of both smallenables wireless charging of both small

and large devices.and large devices.

Power cast system consists ofPower cast system consists of

Power Caster or TransmitterPower Caster or Transmitter

Power Harvester or ReceiverPower Harvester or Receiver


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General Power Cast SystemGeneral Power Cast System


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Power casterPower casterPower caster is a device which converts thePower caster is a device which converts the

input voltage into RF waves and radiatesinput voltage into RF waves and radiatesthem all over its confined range.them all over its confined range.

It acts just like a RF transmitter.It acts just like a RF transmitter.

RF power transmissions typically deliverRF power transmissions typically delivermilliwatts of power to devices using up tomilliwatts of power to devices using up to4 volts, making it ideal for recharging small4 volts, making it ideal for recharging smallbatteries in remote controls and flashbatteries in remote controls and flash--

memory based devices like iPods.memory based devices like iPods.


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Pin diagram of a TransmitterPin diagram of a Transmitter


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Features of Power CasterFeatures of Power CasterOptimized for extending effective range withoutOptimized for extending effective range without

increasing the average power.increasing the average power.

Low power consumptionLow power consumption

Small size and Easily integrable.Small size and Easily integrable.A highly accurate and stable oscillator centred atA highly accurate and stable oscillator centred at

905.8MHz (902905.8MHz (902--928 MHz ISM band) is used to928 MHz ISM band) is used tominimize distortion and interference.minimize distortion and interference.

Far field Powering that delivers mwatts overFar field Powering that delivers mwatts overmetres.metres.

Near field Powering that delivers watts overNear field Powering that delivers watts over

cms.cms.


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Power HarvesterPower Harvester -- the realthe real

InnovationInnovation

Power Harvester is a chip which picks up thePower Harvester is a chip which picks up the

radio waves from the air and converts it into dcradio waves from the air and converts it into dcvoltage and charges the battery of a device.voltage and charges the battery of a device.

It is a chip about half the size of an AAA batteryIt is a chip about half the size of an AAA batteryand must be accompanied by a small antenna.and must be accompanied by a small antenna.


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Features of Power HarvesterFeatures of Power Harvester

High conversion efficiency.High conversion efficiency.

OverOver voltage protection.voltage protection.

No external components required exceptNo external components required excepta small antenna.a small antenna.

Small size and easily integrable.Small size and easily integrable.

Low power consumption (


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Power CastPower Cast -- schematic diagramschematic diagram


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Schematic diagram 2Schematic diagram 2


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How is it different..?How is it different..?

Splash PowerSplash Power : In this system the device needs: In this system the device needsto be placed on a inductive charging base or ato be placed on a inductive charging base or a

pad to be charged.pad to be charged.

It delivers large power but for very shortIt delivers large power but for very shortdistancedistance

Unlike Solar Power, Power cast can be alwaysUnlike Solar Power, Power cast can be alwaysON.ON.


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AdvantagesAdvantages

Personal devices need not be consciouslyPersonal devices need not be consciouslycharged.charged.

Ablility to charge isolated devices andAblility to charge isolated devices andsensors like temperature sensors in A.Cssensors like temperature sensors in A.Csand light sensors in the street lightsand light sensors in the street lights

Can deliver Power through walls, ceilingsCan deliver Power through walls, ceilingsand surfaces.and surfaces.


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AdvantagesAdvantages

Highest ratio of Power over distanceHighest ratio of Power over distancecompared to other wireless powercompared to other wireless powersystems, from a few cms to many meters.systems, from a few cms to many meters.

Ability to power any number of harvesterAbility to power any number of harvesterembedded devices through a singleembedded devices through a singlePower caster.Power caster.

Harvester can convert any available RFHarvester can convert any available RFenergy to usable charge for the batteries.energy to usable charge for the batteries.


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TheTheGreenGreenadvantageadvantage

Power Cast reduces the need for batteries andPower Cast reduces the need for batteries andnumerous redundant adapters.numerous redundant adapters.

Even when Power cast is used to charge aEven when Power cast is used to charge abattery instead of the device directly, it avoidsbattery instead of the device directly, it avoidsthe use of toxic nithe use of toxic ni--cd batteries .cd batteries .

This reduces a lot of electronic waste and manyThis reduces a lot of electronic waste and manytoxic chemicals which are dumped on earth andtoxic chemicals which are dumped on earth andproduce a lot of harmful effects.produce a lot of harmful effects.


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power cast - casting its energy around

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