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Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 1:31pm On Apr 03 |
Trippledots: Most of the 'inverter' termed devices (inverter fridge, watching machine etc) are typically switching power designed (aka SMPS), and a properly designed SMPS, built to handle above 100W should have active power factor correction ( PFC ) built into the design. In the absence of this PFC, the load (your inverter AC in this case) would affect the phase relationship of the inverter output, consequently affecting any meter equipment that depends on the standard current/voltage relationship to produce correct values. Also, Normal AC, fridge, washing machine general affect power factor, hence I suspect your meter to be the problem here, it seems to be unable to measure the correct power. |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 6:28pm On Mar 29 |
Trippledots: What was the inverter powering? What tools were used for the measurements? What's the inverter spec? |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 4:28pm On Mar 20 |
earthrealm: @ easyyoke If you're willing to go for this option and say would like to modify to make it hybrid (that's everything to be in one box), with customization / control / monitoring (local and/or remote), hit up yours truly.. |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 4:12pm On Mar 20 |
Obnoxious2001: Studied and Practicing... Yes |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 8:38pm On Mar 12 |
Obnoxious2001: That was why I said, "Your inverter is most likely turned on / connected to a power source (the battery)." It's still connected to a power (battery) source even when switched off those switches (Most likely MOSFETs) can still falsely come on. The battery is not the primary source for a controller, current is supposed to flow from panel to the battery and not the other way round. The switches being short circuited are on the panel side. 1 Like |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 7:18pm On Mar 12 |
Obnoxious2001: The basic characteristics nature of every controller and inverter, is to perform voltage and current conversation and as regards the purpose (being a controller or an inverter), they have different configuration / topology of achieving such conversation. To make my argument simple and less technical, and since most of us are well aware that inverters / charge controller are all glorified power converters (DC-dc or dc-ac or whatever), I will assume that for majority of these inverters / controller, they have internally, two groups of switches, of which one, and only one group must be switched on at any time. If for any reason both are on at same time.. big bang. This timing is usually controlled by an MCU (typically) connected via 'drivers'. You don't necessarily need a direct hit to make them miss calculate, just EM radiation from nearby strike can make some lose focus and most probably hang!! The MCU can hang leaving both groups of switches on! (That's why you'll need a reset for those that survived and can't self reset). 1. Lighting usually strike at night (controller is not charging, even if both switch are forced to turn on, no power from solar that will make them blow up). Your inverter is most likely turned on / connected to a power source (the battery). 2. Even if strikes occurred during the day time, Most controller are designed to shut cct the panel to find the Maximum point, so the the two groups switches coming on at same time might survive the current rush (and it's usually not sunny when it rains). 3. All my assumptions are base on non direct hit by lightning oo. I am not sure that even the so called branded names will survive a direct hit! (Controller and inverter inclusive). PS: just my theories. 1 Like 1 Share |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 7:02pm On Dec 26, 2023 |
dollarnaira: It works with all inverters bro, and generally all power converters. Once you can get a matching FET, or even better (voltage, current, on resistance, gate capacitance, rise time etc..) rating, it will definitely work. The major problem with repaired electronics is that the root cause is often ignored (did something not behave as it was designed to that made the FET go bad?) , or the damage to to FET had resulted to a slight damage of another device (eg. The FET driver), just changing the FET with the same or similar type in either of this case will definitely be a temporary solution. 4 Likes |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 11:19am On Oct 08, 2023 |
bassdow: For the record, I don't agree with the bolded in the context in which the question to reply was asked. Also the bolded and '5V 400A phone charging' are completely different scenario and should not be assumed same. |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 11:06am On Oct 08, 2023 |
ojeysky: Egbon Ojey you're seeing this 400A like it's already thrusting through the phone If that's the case then the phone will fry nah. We're assuming a constant voltage source of 5V, ability of 400A and not a constant current source of 400A, ability of 5V. I could agree with 3, and 4 you listed tho. |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 10:44am On Oct 08, 2023 |
Dam5reey: I agree with you that there's a limiter capacity that if exceeded, the device might be destroyed. The question now is what could cause this limiter capacity to be exceeded? Certainly it can't be current because say a 2A limiter will do all it could to maintain a current 2A. Could it be voltage? Yes! Because the excess voltage will result to more power being dissipated by the limiter to maintain 2A current! What could cause the excess voltage? Case 1. The power source itself ( your phone charger ) Case 2. The battery being too low ( the limiter will disspate more power to maintain 2A for a battery that's at 3V, than when the battery gets to 4V ) So in assumption that your phone's limiter can handle Case 2 without any issue, and as long as the voltage of you charger never exceeds 5V, even if it's a 1000A source, nothing will happen to your phone. Remember I said Most phones Queed: |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 9:12pm On Oct 07, 2023 |
Dam5reey: Most phones will only pull just what it need at that 5V |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 9:11pm On Oct 07, 2023 |
brightk: I guess he wouldn't sell at same price as new cells |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 3:44pm On Oct 01, 2023 |
bassdow: Lol. The fact that say a transistor gets smaller doesn't make it less a transistor Those Inverters you call sachet/ transformerless (Suoer and co.) actually do have transformers inside which are used for the DC to DC converter block. That said, it's possible for an inverter to be completely transforless, an inductor could be used for the DC to DC converter block, or you could arrange 25 units of 12V battery in series to get 300V DC which will substitute for the DC to DC converter block. But as you may have already noticed, these two other methods aren't much practical (for the inductor, 12v to 300v is too much of a conversion ratio for even as small as an 100W inverter, and either case, good bye to any form of isolation you may want to provide between the battery and the AC out). PS: I studied Electronics, I have the background knowledge of such, I have done little research, and I have built a lot of those sachet inverters and various power converters. So I do know quite well. |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 8:13pm On Sep 30, 2023 |
bassdow: When you say the TransformerLESS inverter doesn't use a transformer, then what boosts the voltage from say 12v, to whatever level that's suitable for appliances? |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 7:37pm On Aug 21, 2023 |
Prince3030: What kind of load is the 250W? AC or DC? If AC, would it tolerate MSW? You mentioned solar, is the 6hrs time during the day or at night.. or you just need it to work at least once a day for 6hrs |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 10:44pm On Feb 09, 2023 |
NiyiOmoIyunade: Just for curiosity sake, say the FETs of the Switch mode inverters are made much larger or over sized, such that the ferrite transformer doesn't necessarily need to rely on the flywheel effect, rather, being in the forward mode, the necessary instantaneous power are pulled from the battery to handle surges. Could this be a solution to the problem or must there be an iron somewhere that would have to had store this power needed for the surge? 2 Likes |
Science/Technology / Re: How To Create A Locally Made Inverter With Ease by Queed: 11:16am On Aug 03, 2022 |
Hero2t: |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 6:49pm On Jul 31, 2022 |
dollarnaira: |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 5:26pm On Jul 31, 2022 |
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Health / Re: Please Help, My Kid Sister Is In Pains (pics) by Queed: 11:31am On Jul 30, 2022 |
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Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 7:47pm On Jul 17, 2022 |
[quote author=emmy9500 post=114827609[/quote] |
Science/Technology / Re: How To Create A Locally Made Inverter With Ease by Queed: 1:44am On Jul 16, 2022 |
The KENE_01 is an hybrid alternative power system with the following built-in devices: • 300W Inverter • 960Wh LFP battery • 24A Change controller (MPPT) • 5v 1.5A usb (X2) • BMS / 1A Balancer Comes with a 180W power adapter (charge via TX60 connector). Can connects Directly to solar panel (via TX60 connector) Ideally, all that's needed is any voltage source in the range Vmin = 14V dc, Vmax = 32V dc. Features: • Sleep: Can be set to 1. Battery - Shutdown when battery is below a preset percentage 2. Time - Shutdown when a preset time (minutes/hours) has passed. • Monochrome OLED interactive display - displays all parameters • Charge Current can be selected to be anywhere from 1.0A to 24.0A with step of 0.1A • Tri-Colour LED to indicate battery level, charging status, and battery/time shutdown. (Can be turned off for all if desired) • Four control/navigation buttons • ESP32 - dual core 32bit micro controller - processes and controls all system functions and devices ( including the MPPT algorithm, BMS, Balance etc.). Price: #230k (pay by installments available) 081 zero zero 44 one six 11
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Computers / Re: Let's Discuss Embedded System by Queed: 4:13pm On Jan 17, 2022 |
Dondbuzor:
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Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 8:15am On Dec 03, 2021 |
NiyiOmoIyunade:Good morning sir. Please I'll like to get in touch with you on WhatsApp |
Science/Technology / Re: How To Create A Locally Made Inverter With Ease by Queed: 8:43pm On Oct 12, 2021 |
Queed: Still available |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 12:37pm On Oct 06, 2021 |
https://www.youtube.com/watch?v=HaqZBnZN3uE *150W @ 195Wh - 55k* ```It Can charge an average laptop more than 3 times, charge a smartphone up to 10 times, and power a TV for 3 and half hours.``` *500W @ 390Wh (modified sine wave) - 100k* ```it can charge an average laptop over 7 times, charge a smartphone up to 20 times, power a TV for more than 7 hours``` *500W @ 455Wh (pure sine wave) - 140k* ```can charge an average laptop over 7 times, charge a smartphone up to 20 times, and power a TV for more than 7 hours, mini fridge for more than 7 hours``` Features : 220v AC output Shut circuit/ overload protection 2 USB 5v 3A ports 1 12v 3A port Microcontroller IC integration Visual display (pure sine wave only) Solar Charging function WhatsApp: 090...49..3048..47
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Computers / Re: Inverter Users : Lets Have Your Experience by Queed: 12:35pm On Oct 06, 2021 |
https://www.youtube.com/watch?v=HaqZBnZN3uE *150W @ 195Wh - 55k* ```It Can charge an average laptop more than 3 times, charge a smartphone up to 10 times, and power a TV for 3 and half hours.``` *500W @ 390Wh (modified sine wave) - 100k* ```it can charge an average laptop over 7 times, charge a smartphone up to 20 times, power a TV for more than 7 hours``` *500W @ 455Wh (pure sine wave) - 140k* ```can charge an average laptop over 7 times, charge a smartphone up to 20 times, and power a TV for more than 7 hours, mini fridge for more than 7 hours``` Features : 220v AC output Shut circuit/ overload protection 2 USB 5v 3A ports 1 12v 3A port Microcontroller IC integration Visual display (pure sine wave only) Solar Charging function WhatsApp: 090...49..3048..47
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Science/Technology / Re: How To Create A Locally Made Inverter With Ease by Queed: 12:31pm On Oct 06, 2021 |
https://www.youtube.com/watch?v=HaqZBnZN3uE *150W @ 195Wh - 55k* ```It Can charge an average laptop more than 3 times, charge a smartphone up to 10 times, and power a TV for 3 and half hours.``` *500W @ 390Wh (modified sine wave) - 100k* ```it can charge an average laptop over 7 times, charge a smartphone up to 20 times, power a TV for more than 7 hours``` *500W @ 455Wh (pure sine wave) - 140k* ```can charge an average laptop over 7 times, charge a smartphone up to 20 times, and power a TV for more than 7 hours, mini fridge for more than 7 hours``` Features : 220v AC output Shut circuit/ overload protection 2 USB 5v 3A ports 1 12v 3A port Microcontroller IC integration Visual display (pure sine wave only) Solar Charging function WhatsApp: 090...49..3048..47
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Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 2:07pm On Aug 31, 2021 |
Penuelseun: How much did you get this please? |
Science/Technology / Re: How To Create A Locally Made Inverter With Ease by Queed: 8:51pm On Aug 29, 2021 |
Queed: |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by Queed: 11:01am On Aug 28, 2021 |
Queed: An upgrade to this. 40 pieces of 18650 @ 2.2Ah arranged in 4s10p 325Wh Inverter, Charge controller, BMS were all built from scratch and integrated on same board. Inverter: 300W continuous (not recommended due to battery size) 500W peak (2sec) High frequency type Idle power 1.12W controller: PWM type 6A max 16V - 30V input voltage (whether solar panel or DC adapter) BMS: active type 1Amp balance current 25milli Volts balance difference https://youtube.com/shorts/G98UFwaM0jM?feature=share https://www.youtube.com/watch?v=dujk8eehc_o 2 Likes
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Phones / Re: Hi, Is It True That Power Bank Spoils Phone Battery by Queed: 4:44pm On Sep 26, 2020 |
Most times, power bank doesn't spoil your battery. Your battery will only wear out due to continuous charging and discharging (usage). If you have 247 power, you will most likely experience same degrading nature of the battery just as someone who frequently use powerbank. I'll also like to add that an average powerbank is far more superior than an average mains charger (in aspects such as healthy charging, safety, interference etc). PS: Dismiss the notion that using your phone while charging it damages the battery 10 Likes 1 Share |
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