逆变器

300W逆变器

Here is a schematic 300W power inverter with 12 volt batteries as a source. This inverter is controlled by 555 timer and CD4017 decade counter. You should try to build this inverter, because it can be used to power load 300W. With the power was sufficient to illuminate a few light bulbs at night for your camping needs.

This 300W power inverter is quite simple but powerful, efficient, and stable. The inverter is built using a 10V center tap transformer. A 555 Timer IC and a 4017 decade counter IC used to produce a modified sine wave of 50 Hz.

300W Power Inverter Circuit Diagram

 

 

 

300W Power Inverter Circuit

Timer 555 will produce a frequency of 200 Hz (see the schematic for more info) by adjusting the potentiometer value of 500K. CD4017 produces the pulse trains on pin 2 and pin 7 of CD4017 is connected to the gates of the MOSFET STP36NF06L. It then directed to the transformer primary side. There will be 220V AC at the transformer secondary side of the 300W power inverter.

In order for the inverter system can run to efficiently use the cooling fan, even though the heatsink is still needed. Be careful you are working with AC power at the output of the 300W power inverter.

TL494逆变电路图，12V工作电压，不同的输出变压器可以输出不同电压，更换功率管和选择合适的变压器可以做输出几百瓦哦。

1000W逆变器电路图,1000W Mosfet Power Inverter

 

This power inverter circuit will provide a very stable “Square Wave” Output Voltage. Frequency of operation is determined by a pot and is normally set to 60 Hz. Various “off the shelf” transformers can be used. Or Custom wind your own for best results.
Additional MosFets can be paralleled for higher power. It is recommended to Have a “Fuse” in the Power Line and to always have a Load connected”, while power is being applied. The Fuse should be rated at 32 volts and should be aproximately 10 Amps per 100 watts of output. The Power leads must be heavy enough wire to handle this High Current Draw! appropriate Heat Sinks Should be used on the RFP50N06 Fets. These Fets are rated at 50 Amps and 60 Volts. Other types of Mosfets can be substituted if you wish.
There ARE Limitations! I have had numerous requests for an Inverter for 1000 watts and Even MORE. Sorry I Don’t feel this is Practical. At 1000 Watts and operating from a 12 Volt Source, the Input Current will be close to 100 AMPS. That would Require a HUGH Size of a Primary Wire

CD4047 500W 12V 220伏逆变器电路,CD4047 POWER INVERTER

 

CD4047 500W 12V 220伏逆变器电路
可以转换12V直流转220伏交流。4047是用来产生方波。
基本公式为P =VI输入输出之间的变压器，输入功率=输出功率
因此，变压器12V到220伏，但输入绕组必须能够承受20A。

小功率工频逆变器,50Hz power inverter

 

 

这里介绍一种简单的小型逆变电源．可以在交流电源断电的情况下，对25W、35W等小型电烙铁或者小功率灯泡继续供电。以应急使用。

晶体管T1和T2(BC547)构成方波多谐振荡器，输出50Hz信号。此互补输出由T1、T2集电极送至由T3、T5和T4、T6构成的PNP达林顿驱动级．并将输出连接至由T7、T8构成的推挽放大级。

变压器X1次级经12—0—12端子连接推挽放大器T7、T8的集电极．中心抽头接12v电池(7Ah)，初级则送出220v交流电供小功率阻性负载使用。

使用时，只需合上开关S1，变压器X1就会在其初级端送出220v交流电压，需要根据负载的大小．调整电池的容量、T5～T8的散热器大小和变压器的大小等等。