₦airaland Forum

Call me.

Need some?

Need some batteries??

Need some batteries?

Need some Mppt cc? Call me.

Need some?

Am still available, and we can help you make your paypal or credit card payments,in case you need to make any payment to your paypal account from Nigeria, or to purchase any goods online e.g aliexpress, ebay, banggood.com, alibaba etc. We can help you make the payment. Our prices are attractive.
Below are some screenshots of some transfer and transaction I made to some clients i met on Nairaland lately.

In the second screenshot, the clients payment to my account didn't reflect on time, so when I made the transfer to his PayPal account it was denied by my card issuer, reason; insufficient funds.
So when the payment reflected I was able to make the requested transfer of $100 to his PayPal account. All this was done within 5min due to the delay my Access bank had in crediting the payment to my account. Normally this is done within 30 seconds of confirmation of payment into my account.

Am still available, in case you need to make any payment to your paypal account from Nigeria, or to purchase any goods online e.g aliexpress, ebay, banggood.com, alibaba etc. We can help you make the payment. Our prices are attractive.
Below are some screenshots of some transfer and transaction I made for some clients of mine lately.


In the second screenshot, the clients payment to my account didn't reflect on time, so when I made the transfer to his PayPal account it was denied by my card issuer, reason; insufficient funds.
So when the payment reflected I was able to make the requested transfer of $100 to his PayPal account. All this was done within 5min due to the delay my Access bank had in crediting the payment to my account. Normally this is done within 30 seconds of confirmation of payment into my account.

The pix below is an inverter i built recently for my radiant energy project. This inverter was meant to step up 12vdc up to 1000vdc. Although I later changed my mind and reduced it to 400vdc for safety reasons.

Below is an inverter i built recently for my radiant energy project. This inverter was meant to step up 12vdc up to 1000vdc. Although I later changed my mind and reduced it to 400vdc for safety reasons.

You can call me for your Deep cycle batteries.

You can call me for your Mppt cc.

You can call me for Deep cycle battery.

You can call me for Deep cycle battery.

You can call me for your Deep cycle battery.

You can call me for your Mppt cc.

You can call me for your Mppt cc.

Am still available.

Still available.

kode12:
i'm interested but a little doubtful,these batteries dont look new,how are we sure they still have life in them?

They do and still have enough juice in them. What you see are new batteries. The dust covering the batteries was as a result of keeping them in a locked shed.

I lost this thread. Just found it now.

Am still very much around..

Just call me.

Around.

I still dey.

Around.

Am still around.

Around.

Still around.

Teempakguy:
what if we assume that they are in a closed studio that doesn't let sound escape? Would the number increase or decrease?

The number of people needed would decrease.

nisol:
Very simple - voltage isolation, the optocoupler maintains the isolation
between the output and input.

Not only voltage isolation, but voltage regulation.
Here's what the optocoupler does; The inverter chip usualy has two pin for sensing feedback voltage. One of the pin is used for setting the reference voltage using a resistor voltage divider network, the other pin is used for sensing the feedback voltage coming from the output of the inverter.
When the feedback voltage exceeds the reference voltage, the chip shuts off the two output pins driving the MOSFETs. When the reference voltage exceeds the feedback voltage the chip switches on the two output pins.
Without the feedback,the circuit would still run but without a voltage regulation and the device would operate at full power despite no load being connected to its output.
So here's how the voltage regulation is achieved; let's take for example, we set our reference voltage to be 4.5v. Then we generated 5v dc from the output (220v ac) using a voltage divider network and diodes. We then feed this 5v to the feedback pin.
Whenever we switch on the circuit, due to the reluctance of transformers, the output voltage wouldn't swing to 220v instantly. It will ramp from 1v-2v-3v until it gets to 220v, so does the 5v extracted from the output. This transition takes some few nanoseconds. Now let's concentrate on the 5v fed to the feedback pin. Once this voltage reaches 5v the feedback voltage has now exceeded the reference voltage. The chip will then shut down the two output pin. When this happens the 5v being generated from the output will go down to 4.9v-4.8v-4.7v-4.6v-4.5v-4.4v and so on. This transition takes less nanoseconds than the ramping up. The chip having sensed the feedback voltage to be 4.4v which is lower than the reference voltage, will now switch on the two output pins and the power production continues. This cycle is repeated endlessly. The implication is that inverter will never allow the feedback voltage to exceed 4.6v. And because this feedback voltage was gotten directly from the output, the output voltage also will never exceed a certain voltage, even when a load is connected to the output. It is a kind of pulse width modulation technique

paranorman:
Electricity needs a medium to flow na

They don't... Even high voltage electricity doesn't need a medium