2015年3月9日星期一

,24v inverter Precautions inverter

< 1 > TV, monitor , such as a motor when starting the peak power , although the power converter can withstand twice the nominal peak power , but some electrical power in accordance with the peak power requirement may exceed the peak output power of the converter , causing overload current is turned off. pure sine wave power inverter While driving multiple appliances could happen , then you should turn off electrical switches , open the converter switch , and then turn on electrical switches one by one , and should be the first to turn on the highest peak of appliances.
< 2 > In use, the battery voltage begins to drop when the input DC voltage converter down to 10.4-11V, alarms emit a buzzing sound , then a computer or other sensitive electrical appliances should be promptly closed , if ignored alarm sound, the voltage converter to 9.7-10.3V , the automatic shutdown to avoid excessive battery is discharged . power protection turns off, the red light is on .
< 3 > timely start the vehicle , the battery charging to prevent battery failure , the impact of the car starts and the battery life.
< 4 > Although the converter is no overvoltage protection , solar inverters input voltage exceeds 16V, may still damage the converter.
After <5 > continuous use , the shell surface temperature to rise to 60 ℃, attention unobstructed airflow , temperature sensitive objects away from the impact .

2015年3月6日星期五

24 volt power inverters Inverter Precautions the DC voltage to be consistent

Access to each inverter has a DC voltage value , such as 12V, 24V , etc., and asked to choose the battery voltage must be consistent with the DC input voltage of the inverter . Solar power inverters For example , 12V 12V battery inverter must choose .
2 , the inverter output power must be greater than the use of electrical power , especially when starting power for large appliances such as refrigerators, air conditioners , but also leave bigger margin.
3, the positive and negative must be connected correctly
Access to the inverter DC voltage labeled positive and negative . Red is positive ( + ) , black is negative ( - ) , also marked on the battery positive and negative , red is positive ( + ) , black is negative ( - ) must be connected to the connection being positive ( red pick red ) and negative to the negative ( black to black ) . Cable diameter must be rough enough, and to minimize the length of the cable .
4 , should be placed in ventilated, dry place to guard 500w solar inverter against rain , and with the surrounding objects distance of more than 20cm away easily
Burning explosive materials , or cover other items should not be placed on the machine , the ambient temperature of not more than 40 ℃.
5 , the charging can not be performed simultaneously with the inverter . That is not the inverter of the inverter output of the charging plug into an electrical circuit.
6 , the two switched intervals of not less than 5 seconds ( off the input power ) .
7 , with a dry cloth or anti-static cloth to keep the machine clean.
8 , the input and output connections of the machine before , first shell properly grounded machine.
9 , in order to avoid accidents, non- user to pure sine wave power inverter open the case to operate and use.
10 suspected faulty machine , please do not continue to operate and use , should be promptly cut off the input and output , by qualified service personnel or maintenance units for inspection.
11 , when connecting the battery , make sure your hands are no other metal objects to avoid short-circuit the battery , the body burns .

2015年3月3日星期二

Inverters environment based on security and performance considerations, installation environment should meet the following conditions

<1> Drying: not flooding or rain 
<2> cool: a temperature between 0 ℃ and 40 ℃ 
<3> Ventilation: No foreign body 5CM 24 volt power inverters remain on the housing, the other end face of a well-ventilated 
13. Installation method 
<1> the converter switch to OFF (OFF) position, then put the cigar head into the car cigarette lighter socket, plug in place and ensure good contact. 
<2> Make sure that all electrical power be used in the G-ICE nominal power below 220V plug the appliance directly into the converter 220V socket at one end, and to ensure that all solar inverters connections are two outlets of electrical power and the G-ICE less than the nominal power. 
<3> Open converter switch, the green indicator light indicates normal operation. 
<4> The red indicator light, said that due to over / under voltage / overload / over temperature, causing the converter off. 
<5> In many cases, due to the limited car cigarette lighter socket output, making normal use of the converter alarm or shutdown, then as long as the vehicle is started or reduce Solar power inverters electric power can be restored to normal.

2015年2月28日星期六

24v inverter Car cigarette lighter socket can output more power for electricity ?

To take power from the cigarette lighter socket , the inverter should be able to drive the power of a hundred -watt electrical appliances . But customers reflect , then P4 solar inverters laptop minutes later, the inverter automatically power off and alarm. We know , P4 laptop power of about 90 watts, is higher . As some of the models in this circuit from the battery to the socket cigarette lighter on the use of non-compliance leads and cigarette lighter socket , large losses in the current surge in the circuit , the supply voltage of the inverter to a sharp decline undervoltage protection circuit action is the critical point - 10 volts , causing the inverter to stop power supply . To solve this problem , Solar power inverters and to ensure that in future the normal , safe and reliable use of the inverter , it is recommended to wire the circuit is converted into high-quality copper wire cross-sectional area of ??2.5 mm2 or more , and if necessary replace the cigarette together socket.
Another point to note is taken from a car cigarette lighter socket DC power to the inverter , car cigarette lighter only supports 300W power, or car cigarette lighter power inverter due 24 volt power inverters to the use of excessive and burn , if you must to use more than 300W inverter , it can give an inverter directly from the car battery wiring.

2015年2月25日星期三

24 volt power inverters In the case of switching off the engine car inverter you can use

Can. 350 watts or less when using low-power appliances, general car 24v power inverter battery can provide power for 30-60 minutes turn off the engine in case, if you use only one laptop consumes 50-60 watts, time will have to grow much. Our quasi-sine wave inverter equipped with undervoltage warning and undervoltage protection circuit, when the prolonged use of the battery voltage drops to 10 volts lead, undervoltage protection circuit is activated, the output voltage is cut off and the police to prevent the battery because voltage is too low to start the engine of solar inverters the accident. Therefore, the user can safely use the inverter under the engine off state.

2015年2月12日星期四

24 volt inverters Car Power Fundamentals

According to the basic principles of power inverter , using analysis of existing data is derived , presents a square wave inverter production methods and to debug .
The basic principle of a Car inverter knowledge system
The inverter power input for the battery (+12 V, capacity 90A · h), frequency output is a square wave voltage (50Hz, 310V). The block diagram shown in Figure 1 . Currently , new technologies constitute DC / AC inverter lot, but taking into account the specific conditions of use and cost, and reliability of the power supply still uses typical secondary transformation, ie DC / DC converter and a DC / AC inverter . First, the DC / DC converter to the inverter DC12V high frequency square wave voltage by boosting the high-frequency step-up transformer , and then rectified and filtered to obtain a stable DC voltage of about 320V ; then the DC / AC inverter for converting a square wave mode , will become a stable DC voltage rms slightly larger than the inverse square-wave voltage of 220V ; then obtained by LC filter frequency of 50Hz is 220V AC voltage to drive the load.
2 DC / DC conversion
Because of relatively low voltage side of the transformer primary , the transformer in order to improve the utilization of lower cost , DC / DC conversion shown in Figure 2 , push-pull circuit , the primary center tap connected to the battery , with the ends of the switch control , alternate work can improve the conversion 40A mppt charge controller efficiency. The push-pull circuit with fewer switching devices , double-ended working volume of the transformer is relatively small , the duty cycle can be increased , increasing the output power ....

2015年2月9日星期一

24v inverter Kind of vehicle power

( Power converters , Power Inverter) is a way to convert the DC power DC12V and AC220V AC mains the same , for general electrical use , is a convenient vehicle power converters. Pure sine wave power inverter Car power inverter in foreign markets was generally welcomed. Abroad due to the higher prevalence of motor vehicles , work or travel to a battery driven electrical connector and a variety of tools to work with inverters . After China entered the WTO, the domestic market, more and more private transport , therefore , as a DC car power inverter for use on the move to AC converter , will bring a lot of convenience to your life, is a standing automotive vehicle loaded with supplies. By car cigarette lighter output inverter can be 20W, 40W, 80W, 120W 150W power until the specification. Then a large number of power inverter to be received via cable on the battery. The appliances connected to the output of the power converter can be used in a variety of appliances like the car as easy to use at home . Can be used in appliances include: cell phones, laptop computers, digital cameras, cameras, lighting, electric shavers , CD players , game consoles , PDAs , printers , power tools, car refrigerator and a variety of travel , camping , medical aid appliances. Power is the power part of the electronic device , is a highly versatile electronic products. It has been widely used in various industries and daily life, its quality greatly affects the reliability of electronic devices , with a load capacity level and the strength of its conversion efficiency is directly related to its scope of application . Square wave inverter is a low-cost , extremely 1500w with charger inverter simple conversion method , which applies to all kinds of rectifier load , but for the adaptation of the transformer load is not very good , there is a large noise.