显示标签为“150w power inverter”的博文。显示所有博文
显示标签为“150w power inverter”的博文。显示所有博文

2014年6月3日星期二

Car Power Profile

Power Inverter Car Power called , is a way to convert the DC power DC12V and AC220V AC mains the same , for general electrical use , is a convenient power converters , as commonly used in the automotive named.
The inverter is a way to convert the DC power DC12V and AC220V AC mains the same , for general electrical use , is a convenient power converters , as commonly used in the automotive named. 2.DC/DC DC converter power supply , which is usually the car battery 12VDC or 24VDC to 5000 watt inverter 48VDC converted to direct current electrical equipment such as a car.
Car power general use car battery or cigarette lighter power supply , the first such low-voltage direct current is converted to DC 265V or so ; then is the real transformation stage , it will transform high voltage DC to AC 220V, 50Hz for . With the vehicle power supply , you can put all the family moved to the car using small appliances such as mobile phones , laptop computers, digital cameras , car refrigerators, cameras , DVD , etc., thus making the car there is a feeling of home away from home . Since its launch , many limitations of using those appliances in the car will no longer exist , people can really enjoy , " and family -friendly, connected with the world " feeling .
Car power not only apply to vehicle systems , as long as there are occasions DC12V DC power supply , power inverter can be 4000 watt power inverter used , will convert DC12V AC220V AC, bring convenience to people's lives . Car power fully take into account the external environment , when an overload or short circuit protection will be automatically shut down. The output voltage of the power supply feedback to confirm vehicle itself can make the voltage stability, voltage variation is less than the rated load and 10V. It should be noted that the purpose of the vehicle power supply output and the same mains voltage to meet the needs of appliances , but actually the vehicle power supply output is an analog sine wave and the sine wave of the mains is true , the two slightly different , generally do not affect the use, which is the principle vehicle power supply decisions .
Select the vehicle power supply in addition to the price factor to consider is the main vehicle power requirements for the size of the input voltage and output power , in addition to a variety of use due to the large difference in electrical power , so to select the vehicle power supply according to needs, the principle is enough used mainly.

2014年5月8日星期四

The principle of solar inverters

Usually convert ac power to dc can call rectification, the process of phase controlled rectifier is one of the most common ac to dc conversion process; And call direct current process which can transform into ac power inverter, it is the inverse process of rectification. In the inverter circuit, according to the properties of the load, inverter can be divided into active and passive inverter inverter. If the ac side of the circuit to the ac power, convert direct current (dc) can pass straight - communication, inverter to the ac power up with frequency alternating current (ac) to return to the grid, called active inverter. The corresponding device is called active inverter, control Angle is greater than 90 ° phase rectifier for common active inverter. And direct current (dc) can transform into ac power, directly to the power supply circuit, power supply load is called passive inverter circuit, also known as the frequency converter.
Inverter type has separately excited, self-excitation inverter,  2000 watt power inverter  pulse width modulation (PWM) inverter. Which he excitation voltage source inverter need external communication, provide thyristor rectifier voltage. He wound inverter is mainly used in high power grid; Whose power is less than 1 mw photovoltaic power generation systems, mainly adopts the way of self-excitation inverter. Self-excited does not require an external voltage source inverter, rectifier voltage by the  2500 watt power inverter  part of the energy storage element (such as capacitance) to provide or by increasing stay shut off rectifier valve (like MOSFET and IGBT) resistance value. Be self-excited pulse modulation inverter output voltage is called the pulse inverter. This kind of inverter pulse switching times, by increasing the cycle to reduce the harmonic content of voltage and current; Harmonic content was positively than with pulse switching times. At present, the output of the grid inverter control mode there are two main types: voltage type control mode and current mode control mode. Voltage type control mode based on the principle of the output voltage controlled quantity, as the system output voltage and power grid of the same frequency and phase of voltage signal, the whole system is equivalent to a controlled voltage source internal resistance is small; The principle of current mode control mode is output inductor current as control target, the system output voltage and power grid of the same frequency and phase current signal, the whole system is equivalent to a larger internal resistance of the controlled current source.
At present, there are many kinds of solar inverters, topology structure, the most common of which are used for single-phase half bridge, bridge and HerIC (Sunways patent) inverter, as well as six pulse for the three-phase bridge and midpoint clamping (NPC) inverter. Solar inverter four commonly used the typical architecture of full bridge topology of the switch

2014年4月16日星期三

Power Inverter Features

1 , the use of advanced dual- CPU single chip dedicated intelligent control technology , high reliability ,
   Features low failure grid inverters ; control circuit is simple, reliable, and fast response to external environment
   Changes ;
2 , the output frequency stabilization , filter out noise , low distortion pure sine wave ; regulator
   High precision ;
3 , load capacity, load compatibility , built-in bypass switch , improved power Off grid inverter
   Source of supply continuity and reliability ;
4 , and low noise , low no-load loss , high efficiency AC power inverters, high machine efficiency
5 , the DC input power using advanced noise suppression technology anti-irrigation , direct and other shared
   Flow -screen communication devices interfering, AC input using multiple filtering to eliminate
   Interfere with the electricity grid , the system needs to meet the application needs of the primary AC power ;
6 , with perfect protection functions ( over- load protection , internal over- temperature protection , output short
   Circuit protection , input under-voltage protection, input overvoltage protection ) , greatly improving product
   Reliability ;
7 , materials used sophisticated , real materials , advanced manufacturing technology , beautiful ;
8, the cooling fan intelligent control, CPU control the working status of the cooling fans , greatly
   Extend fan life and save energy, improve work efficiency ;
9 , fully automated maintenance , no one on duty stations .
10 year product warranty ( repair rate is very low ) , and lifetime maintenance.

2014年4月14日星期一

Inverter role ?

Is the DC power ( battery , storage battery ) into alternating current ( typically 220v50HZ sine or square wave ) . Popular speaking , the 4000 watt power inverter is a direct current (DC) into alternating current (AC) devices. It consists of inverter bridge , and filter control logic circuit .Widely used in air conditioners, home theater, electric wheel, power tools , sewing machines , DVD, VCD, computers, televisions, washing machines , range hoods , refrigerators , VCRs, massage , fans, lighting and so on.Briefly, the inverter is a low voltage ( 12 or 24 volts or 48 volts ) power to an electronic device 220 volts alternating current. Because we usually rectified to 220 volt inverter olts AC into DC to use, and the role of the inverter on the contrary, hence the name. We are in a "mobile " era , mobile office, mobile communications, mobile leisure and entertainment. In moving state , people not only need low voltage direct current from a battery or battery supply , but we need more indispensable in our daily environment 220 volts AC inverter to meet us this demand.

2014年3月24日星期一

power inverter

Inverter, an 24 volt power inverters device must be something to so called, he and transformer has a direct difference, that is to say, he can realize the input and output DC, AC, working principle and switch power source, but the shock frequency in a certain range, for example if the frequency is 50HZ, the output is for the exchange of 50HZ. The 220 volt power inverters is can change its frequency equipment.