在这里，我们了解了几个简单的电路配置，这些配置将将任何低功率逆变器转换为巨大的高功率逆变器电路。
您会发现市场中大量中型逆变器的范围从100到500瓦不等，在此博客中可以看到同样的小型逆变器。按KVA的顺序升级或将如此小的或中等的逆变器转换为巨大的高功率逆变器可能看起来很艰巨且复杂，但实际上并非如此。
分析逆变器拓扑
All inverter topologies basically incorporate an oscillator frequency which is then amplified using power devices to high current levels before dumping into the step-up transformer for the final voltage boosting procedures.
使用高电流设备的当前放大器阶段是需要进行升级的地方，以实现逆变器的任何所需功率输出。
The modern day inveters heavily rely on mosfets for the above mentioned power conversion stage, nevertheless BJTs can be also used for the same very effectively, in fact much reliably than mosfets...
How to Upgrade Low Power to High Power
The following diagram shows a simple and very effective power output stage which can be integrated with any totem pole IC outputs such as IC 4047, IC TL494, IC SG3525, IC 4017 (clocked with IC555), for acquiring upto 1.5kva conversions.
电路中的关键设备是TIP122和TIP35的组合，它们成为高增益，高电流晶体管对，能够立即将电流提升到额定的大量水平。
Each such device module is rated to produce at least 30 x 24 = 720 watts, so by adding more such modules in parallel any desired kva range can be anticipated from the configuration
使用Power BJT
使用BJT可能非常可靠，更简单但安静的笨重，如果您的问题是您的问题，并且需要以最紧凑的方式从低功率逆变器升级到高功率，那么MOSFET成为流行的选择，并且可以如下图所示：
输入再次从任何图腾极IC输出中得出，MOSFET可以按照所需升级从下部到最高幅度进行评分。
The diode integration suggests a simple PWM insertion which is optional, but could be used if a modified sine wave output intended to be included in the upgrade.
Adding MOSFETs in Parallel
The above explained ideas for upgrading a low power inverer circuit to a higher power version can be implemented to any desired level, simply by adding several MOSFETs in parallel.
并行添加MOSFET比并行添加BJT更容易。这只是将所有排水管和所有来源连接在一起，然后通过单个10欧姆电阻将所有门连接在一起。
Upgrading Transformer and the Battery
MOSFETs are like switches, which means that only by upgrading the MOSFETs will only bolster the switching part to handle higher wattage and current. However, to actually achieve the desired high output wattage, the transformer and the battery rating will also need to be upgraded accordingly.
例如，如果将100瓦的逆变器升级到500瓦，则与MOSFET，电池Ah而且，变压器的瓦数还需要增加到预期的3次或更高的值。
上述简单策略将足以使您能够升级或修改或将任何小型或低功率逆变器设计转换为具有所需的Wattage规格的高功率逆变器电路。
good day sir, i so much appreciate all your work in this blog, may God continue to guide you. please i need a complete circuit diagram for 1.2 KVa pure or modified sine wave inverter with inbuilt charging section.
thanks
thanks Muhammed, just integrate a 4047 oscillator circuit with the mosfet power stage as explained above, you would be able to achieve the required specs instantly
嗨，如果我要使用您的电路，如上所述，在300W逆变器工作中的原始变压器将将其修改为加上800W
嗨，300瓦的变压器如何产生800瓦，对不起，这是不可能的。
How many volt should i apply to the collector of that bc547 must it be 12volt?
yes it must be 12V, and the trafo center tap must be separately powered with the battery positive if it's higher than 12V
先生，请解释您计算电源的方式？30*24 = 720如何？
30是可能用于为逆变器供电的电压，而24是晶体管的最大电流额定值。
先生，我希望我们在我国也有一个像你这样的善良和诚实的人，在我的国家也像我一样启发新手
感谢您的快速回复，我能够在两周内将我的小型UPS变成3000瓦的正弦波逆变器
sir i nose around for months but your site is the king of site sir i mean the best i wish more people like you will stand up to enlight
more people like me thanks
您最欢迎Abioye，请继续访问我的网站，并保持良好的工作
I tried to post my question but it seems like it didn’t post.
Dear please provide me a circuit which can be used after my 150v DC smps to control/vary voltage and limit current….volt/current adjustable.
Thank you..!
You can try the following circuit,
//www.addme-blog.com/0-300v-variable-voltage-current/
ignore and eliminate everything that’s on left side of C1
sir please how can i connect a relay in the inverter so that it can automatically switch to the mains when the mains is on,and ratings of the relay. 200w inverter
Olatunji, you can follow the following concept
//www.addme-blog.com/how-to-convert-inverter-umps/
先生。我有一个200W逆变器，它不是ICS设计的。先生，您能解释一下如何与上述电路连接。因为我在这里看到它与ICS相关。
Olatunji, if you are already having a fully working inverter then you can simply check the output power devices and replace them with more powerful devices. No need of making the improvements suggested in the above article.
I am sure your inverter would be using mosfets for the power devices, you just have locate them and replace them with more powerful mosfets, as per your desired specifications.
是的，只有当您的变压器和电池也相应升级时，这才能起作用。
Hi
I want to built 3.5kva 48v to 2220v sinewave inverter can you assist with the part lis and cicuirts board
您将需要一个80安培的48 V变压器….MONY IRF3205 MOSFET和IC 4047振荡器电路。
the basic design will be as given below:
500 Watt Inverter Circuit with Battery Charger
美好的一天先生. .同上。有一个外国逆变器铁rrite core transformer…the out high voltage 310VDC complete, but the switching system, for load regulator is not working, please can you help with a circuit that could switch the MOSFET at the out put stage….please help me….
谢谢
你好阳光,如果你指的振荡器ction, then probably you can use the IC 4047. Adjust its output to 100 kHz, feed the frequency to the MOSFETs, then gradually reduce it until you get the most optimal result from the inverter.
Sir!I hope you can help me, I have a bunch of 230/12V 23A transformers, I'm planning to use 3 in parallel to make a 900W inverter based on your 500W inverter design. Unfortunately the transformers don't have a mid tap, they are 2 wire. I also have a bunch of IXQT13N10P, can I use them in parallel? If not, I do have some K2837 and some IRF3205PBF, can I use any (or some?) of these in combination or parallel to archive my goal? I'm planning to use a 24V battery bank of lead-acid batteries consisting of equal 12V batteries in series/paralell (or would 12V be easier)?
Hello Karstein, yes paralleling may be possible but only at the primary side, not on the 220V side. Before that try with a single transformer to confirm the working, using the following concept:
Simplest Full Bridge Inverter Circuit
The MOSFeT should be exactly as suggested in the above link, other FETs can be tried if they have exactly matching specs.
can i plug a 1000 watt transformer into my 200watt flashfish generator. if i can then the 1000 watts can be used to make coffee.
您只有在1000 W的电压规格与现有200 W系统相似的情况下才能……
Saludos,,,,,,Ing. preguntó cuánto sería la resistencia que debo de usar en las salidas del ci 4047 en pin 10 y 11…..hay un Rango estimado o es diferente para un Bjt y el mosfet..
问候，如果您使用的是MOSFET，那么4017输出电阻并不关键，可以是1k欧姆和10k欧姆之间的任何值
The world is in chaos. Climate change is Rampant. One of the proposed solutions is changing from fossil fuels to electrical powered vehicles, however such power use to charge batteries poses a further strain on our already stressed power grid system. Nikola Tesla patented a process for extracting electricity from the aether. In the book Les Brown Pyramids is described a similar system for extracting electricity. We intend to conduct experiments to determine if this is a possibility. If we are successful we will need inverters to convert high voltage DC to 110 and 220, three leg alternating current sufficient to run an individual household, ideally dual 5000 kilowatt systems designed to provide backup in case of failure of the primary system. The components need to have a low operating temperature below 0 degrees Centigrade. Can you provide information on modifying your systems to provide these parameters. The contemplated input voltage would be 330 volts to provide for an up to 220 volts pure sine wave inverter.
对不起，我认为我无法做到，我只能建议一般的逆变器概念，专业的概念超出了我的专业知识的范围！
Hi there.
Love your site. I want to know , how can I upgrade my 800w inverter to 1500w – samlex
And my 1000w inverter to 2000w – Fivestar
It is for my 2 seperate households
我正在使用您的300W升级，但升级了4次。我会给我的反馈。
嗨，感谢您喜欢我的网站，感谢它。您可以尝试并行添加更多的MOSFET，至少与现有的MOSFET并行5个MOSFET，并相应地升级电池AH评级。