2014年3月27日星期四

Car inverter circuit

Car 12 volt inverter of the whole circuit can be divided into two parts, each part adopts one TL494 or KA7500 chip to form a control circuit, wherein the first part of the circuit is the role of the car battery to provide 12V DC, by the high frequency PWM (pulse width modulation) technique of switching power supply into 30kHz50kHz, about 220V alternating current; the second part of the circuit function is to use the bridge rectifier, filter, pulse width modulation and switching power output technology, 30kHz ~ 50kHz, 220V AC into 50Hz, 220V alternating current.



2014年3月26日星期三

The main function of the vehicle inverter

The main function of vehicle DC AC power inverters is the battery 12V or 24V into 220V50HZ AC output, is the field operation, emergency power supplies. In your car is equipped with an inverter, battery car, your car can Everfount for AC electrical output of your 220V alternating current at any time and any place, for your mobile phone, electric wire, electric, acoustic, TV, fan, AC power portable computer to provide stable, to make your car really become mobile home




2014年3月25日星期二

The working principle of solar inverter

The general structure of photovoltaic 6000 watt power inverters with three different inverter choice. Sunlight on solar modules are connected by connection mode, each module contains a set of tandem solar cell (Solar Cell) unit. DC solar module production (DC) in the order of several hundred volts voltage, number of specific values based on the module array illumination conditions, the temperature of the battery and series module and.
The primary function of this type of grid inverters is the DC input voltage is converted to a stable value. This function is realized by the boost converter, and the need to boost switch and the boost diode.



Photovoltaic power inverter function


24 volt power inverters not only has direct AC transform function, but also has to maximize the performance of solar cell function and fault protection function. To sum up the automatic operation and stop function, maximum power tracking control function, anti separate operation function (grid connected system), automatic voltage regulation function (grid connected system), DC detection function (grid connected system), DC grounding detection function (grid connected system). Here a brief introduction of automatic operation and stop function and maximum power tracking control function.





2014年3月24日星期一

inverter

The inverter according to different sources of power, divided into coal power inverter, solar inverter, power inverter, power inverter. According to different purposes, divided into independent control of the inverter, grid connected inverter. The world solar inverter, and high efficiency, the European standard is 97.2%, but the price is more expensive, the inverter efficiency of domestic other is below 90%, but the price a lot cheaper than imported. In addition to power, waveform, is also very important to choose the inverter efficiency, efficiency is higher in the inverter to waste electricity, used for electrical power is more, especially when you use a small power system the importance of this more obvious.