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Search: Posts Made By: fabieville
Forum: Solar Power 05-26-13, 07:17 PM
Replies: 0
Views: 2,963
Posted By fabieville
LM723 60 amp voltage regulator

I'm trying to design a 60 amp voltage regulator using LM723. I'm going to use the circuit below that is rated for 10amps but I am going to modify it so that it can handle 60amp. Apart from adding...
Forum: Solar Power 06-14-11, 01:58 AM
Replies: 2
Views: 1,870
Posted By fabieville
Solar Panel showing wrong output

I have a solar panel rated for 100 Watt @ 5.1 amps and max shorted amps @ 5.5 amps.
However until recently I realize that my output has drop by about 50%. Even when the panel is facing directly at...
Forum: Solar Power 06-08-11, 07:44 AM
Replies: 142
Views: 66,497
Posted By fabieville
In regards to the flyback diode which is a very...

In regards to the flyback diode which is a very fast recovery diode that is used as a catch or freewheeling diode. Does it have to be a low voltage drop/Schottky diode even thou it is parrallel...
Forum: Wind Power 06-04-11, 01:20 PM
Replies: 2
Views: 2,764
Posted By fabieville
upgrading a diversion charge controller

Is it possible to add a float charging/trickle charging system to a diversion charge controller? Meaning that when the diversion charge controller senses the battery reach a certain voltage and then...
Forum: Solar Power 05-28-11, 10:49 PM
Replies: 5
Views: 3,783
Posted By fabieville
Could i build a buck step down circuit using...

Could i build a buck step down circuit using LM317 or anyone of those adjustable regulators? I am wondering if it would work like how a conventional buck circuit operates. I am planning to use...
Forum: Solar Power 05-28-11, 11:07 AM
Replies: 5
Views: 3,783
Posted By fabieville
looking for a dc-dc stepdown/buck circuit with high current output

I am looking for a dc-dc stepdown/buck circuit that can handle up to 60VDC max input with an adjustable output or a fixed output of 14VDC and have output current up to 8amp or greater.
Forum: Solar Power 05-13-11, 06:57 AM
Replies: 2
Views: 6,967
Posted By fabieville
inverter fan control circuit problem

I have a fan control circuit that i built for my inverter because my inverter fan is always on and its quite noisy so this circuit allows you to adjust at what temperature the fan kicks in and the...
Forum: Wind Power 05-11-11, 09:45 AM
Replies: 2
Views: 3,593
Posted By fabieville
windblue 512 stator in a windblue 540 pma

I have a windblue 540 that is very low on amps so i was wondering if i replace the 540 stator with the 512 stator if i would get a big improvement on the amount of amps it produces? Here is the link...
Forum: Solar Power 05-06-11, 08:12 AM
Replies: 2
Views: 3,140
Posted By fabieville
short circuit protection for inverter AC output

do you know where i could find a short circuit protection schematic for the AC output side of an inverter?
Forum: Wind Power 05-02-11, 12:39 AM
Replies: 6
Views: 4,241
Posted By fabieville
if i design a step down transformer that have for...

if i design a step down transformer that have for the output 15V whenever the turbine passes that amount on the VOC it will be step down to that 15V? So in that case the turbine wont be able to go to...
Forum: Wind Power 05-02-11, 12:30 AM
Replies: 6
Views: 4,241
Posted By fabieville
the distance is short to the battery. I have the...

the distance is short to the battery. I have the rectifier right next to the battery so as the AC is converted to DC it reaches the battery in a 4 feet run. And i dont think the battery will damage...
Forum: Wind Power 05-01-11, 10:45 PM
Replies: 6
Views: 4,241
Posted By fabieville
Using a stepdown transformer on a turbine

I have a windblue 540 low wind turbine. It does not produce a lot of amps. The most I see out of it is about 1-4 amps but when it is spinning the voltage at open circuit goes up to all 30V easily. It...
Forum: Wind Power 04-29-11, 09:37 AM
Replies: 1
Views: 3,234
Posted By fabieville
Using an Mppt charge controller on a windblue 540 pma

I was wondering if using an mppt charge controller on a windblue 540 low wind pma would increase the power output that is going to the battery.
Here is my theory:
We all know that Mppt charge...
Forum: Wind Power 04-18-11, 07:24 AM
Replies: 3
Views: 5,792
Posted By fabieville
Voltage Regulator Circuit needed for a wind turbine

I am seeking a voltage regulator for my windblue 540 wind turbine. I am planning to run my wind turbine to a regular solar charge controller instead of using a dump load controller. What i am...
Forum: Solar Power 03-04-11, 08:45 AM
Replies: 142
Views: 66,497
Posted By fabieville
I dont have to buy the panels online they are...

I dont have to buy the panels online they are sold in my country.
Forum: Solar Power 03-04-11, 04:40 AM
Replies: 142
Views: 66,497
Posted By fabieville
If I use a mppt charge controller such as the...

If I use a mppt charge controller such as the TriStar-60 MPPT Solar CONTROLLER that have a max. input of 150VDC, will it allow me to use the high voltage solar panels (100 VOC) that are rated for...
Forum: Solar Power 02-28-11, 11:44 PM
Replies: 142
Views: 66,497
Posted By fabieville
I notice something about the mini max. Whenever I...

I notice something about the mini max. Whenever I set the target setpoint closer to the battery voltage for eg. 13.8V the battery receives more charge than when I set a higher target setpoint for eg....
Forum: Solar Power 01-25-11, 12:45 AM
Replies: 142
Views: 66,497
Posted By fabieville
There are some LEDs (light emitting diodes) that...

There are some LEDs (light emitting diodes) that produces about 1.5VDC when you expose them to sunlight. I know the current rating of them is very small. I have never tested the current rating of...
Forum: Solar Power 01-23-11, 03:12 PM
Replies: 142
Views: 66,497
Posted By fabieville
The thin film panels have a high VOC typically...

The thin film panels have a high VOC typically about 70Volts and the current rating is about 1amp and they are used for grid-tie installation.

I was wondering if it was possible to build a circuit...
Forum: Solar Power 01-23-11, 01:51 PM
Replies: 142
Views: 66,497
Posted By fabieville
On the mini max site it stated that the speed of...

On the mini max site it stated that the speed of the maximiser's oscillations could be doubled by increasing the 100K resistor to 220K. If i double the oscillation speed will i get better performance...
Forum: Solar Power 01-03-11, 01:55 AM
Replies: 142
Views: 66,497
Posted By fabieville
the only problem with the photocell is that the...

the only problem with the photocell is that the circuit has to be outside which will cause losses.
Forum: Solar Power 01-02-11, 08:23 PM
Replies: 142
Views: 66,497
Posted By fabieville
If i want to upgrade the mini max so that it can...

If i want to upgrade the mini max so that it can operate on 2 setpoints and switch between them depending on the light condition for eg. 15V to operate on low light and 18V when the sun is at its...
Forum: Solar Power 01-02-11, 08:45 AM
Replies: 142
Views: 66,497
Posted By fabieville
What if i accidentally shorts the input or the...

What if i accidentally shorts the input or the output what will happen?
Will it damage the fet?
I know the fet suppose to have a internal protection diode am I correct?
Forum: Solar Power 01-02-11, 08:27 AM
Replies: 142
Views: 66,497
Posted By fabieville
Its not from the inductor it was happening before...

Its not from the inductor it was happening before i add it in so i am guessing its the fet and the pv panel already have the big cap across the output so what else should i do?

Also what can i do...
Forum: Solar Power 01-02-11, 07:57 AM
Replies: 142
Views: 66,497
Posted By fabieville
The mini max is working wonderfully now the only...

The mini max is working wonderfully now the only problem that i am facing and its not really a problem, its more of an annoyance that i can live with, but i would be glad if i could eradicate it.
I...
Showing results 1 to 25 of 59

 
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