mga kuya at ate phelp nmn poh sa two- way power system...

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mga kuya at ate phelp nmn poh sa two- way power system...

Post by nobiuz on Thu Sep 15, 2011 8:58 pm

ang concept poh gnito...

Being a two- way powered vending machine; it has a two way power system either by battery or the main power. The battery will be at its charging mode when the main power is the one supplying power to the machine, the battery will automatically supply power to the machine in case of a power loss. When the battery is already fully charged it will automatically execute its charging mode.


gnyan po ang concept nya.phelp nmn po kung may idea po kau...

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Re: mga kuya at ate phelp nmn poh sa two- way power system...

Post by Hertz on Sat Sep 17, 2011 10:34 am

pwede mung pagkuhanan ng ideya ang basic UPS (Uninterruptible Power Supply) nato.

This circuit is a simple form of the commercial UPS, the circuit provides a constant regulated 5 Volt output and an unregulated 12 Volt supply. In the event of electrical supply line failure the battery takes over, with no spikes on the regulated supply.

Circuit diagram


Notes:
This circuit can be adapted for other regulated and unregulated voltages by using different regulators and batteries. For a 15 Volt regulated supply use two 12 Volt batteries in series and a 7815 regulator. There is a lot of flexibility in this circuit.
TR1 has a primary matched to the local electrical supply which is 240 Volts in the UK. The secondary winding should be rated at least 12 Volts at 2 amp, but can be higher, for example 15 Volts. FS1 is a slow blow type and protects against short circuits on the output, or indeed a faulty cell in a rechargeable battery. LED 1 will light ONLY when the electricity supply is present, with a power failure the LED will go out and output voltage is maintained by the battery. The circuit below simulates a working circuit with mains power applied:

http://www.diy-electronic-projects.com/projects/51/bigs/ups.gif

Between terminals VP1 and VP3 the nominal unregulated supply is available and a 5 Volt regulated supply between VP1 and VP2. Resistor R1 and D1 are the charging path for battery B1. D1 and D3 prevent LED1 being illuminated under power fail conditions. The battery is designed to be trickle charged, charging current defined as :-
(VP5 - 0.6 ) / R1
where VP5 is the unregulated DC power supply voltage.
D2 must be included in the circuit, without D2 the battery would charge from the full supply voltage without current limit, which would cause damage and overheating of some rechargeable batteries. An electrical power outage is simulated below:

http://www.diy-electronic-projects.com/projects/51/bigs/ups.gif

Note that in all cases the 5 Volt regulated supply is maintained constantly, whilst the unregulated supply will vary a few volts.

Standby Capacity
The ability to maintain the regulated supply with no electrical supply depends on the load taken from the UPS and also the Ampere hour capacity of the battery. If you were using a 7A/h 12 Volt battery and load from the 5 Volt regulator was 0.5 Amp (and no load from the unregulated supply) then the regulated supply would be maintained for around 14 hours. Greater A/h capacity batteries would provide a longer standby time, and vice versa.

Source: diy-electronic-projects.com

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Re: mga kuya at ate phelp nmn poh sa two- way power system...

Post by nobiuz on Sat Sep 17, 2011 9:38 pm

auz to kuya....great help..tnx

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Re: mga kuya at ate phelp nmn poh sa two- way power system...

Post by nobiuz on Sat Sep 17, 2011 9:45 pm


Re: advice nmn regarding automated water despencer ?
by ultrasonic™ on Tue May 24, 2011 6:21 pm

+
----
-
napost ko na pla ang ibang mga picx sa pg. 1

eto nlng ang hndi pa
final beam blocker circuit


eto nmn ung documentations nila
MODIFIED WATER DESPENCER

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...master hertz ...alam mo po ba password ng file na nka attached dyn?yang modified water despencer...d kc maextract...may copy k po ba ng file nyan..pd po phngi?klngn ko lng pong mbasa ttngnan ko po kung pnu mkakatulong sa thesis ko..slamat..

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Re: mga kuya at ate phelp nmn poh sa two- way power system...

Post by Hertz on Wed Sep 21, 2011 6:37 pm


subukan mo ang message ko

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Re: mga kuya at ate phelp nmn poh sa two- way power system...

Post by ultrasonic™ on Fri Dec 23, 2011 1:09 pm

tagal na nito ngayon ko lng nabasa Mad

@TS sori sori...

delay delay

on topic:

tnx nito hertz.. mgagamit ko e2 sa next projz ko
although wla pa xang autoshut-off when battery is fullcharge
needed nlng ng kunting modi modi (^_^

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Re: mga kuya at ate phelp nmn poh sa two- way power system...

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