广州市利远汽配城倚华汽车用品行
汽车低音炮，汽车喇叭，汽车高音，线和面框，降压器
          

倚华电器厂建于1997年，公司致力于专业研发、生产、设计汽车影音娱乐系统。专业生产汽车有源和无源低音炮、功放、喇叭、高音、分频器、降压器、汽车音响线材等电子产品于汽车结构完美结合，为现代的汽车提供全程一体化配套服务。

    本厂以专业团队运作为基础，通过创新技术与汽车设计的完美结合，提高产品的视觉、听觉质量，从先进设计理念、到高品质的成品；从专业的生产制造，到精密的测试；每一个环节，均体现着一流设计、一流产品、为客户创造最大的商业价值。

    我们以专业承诺质量，以服务赢取信赖。坚持最严格的质量标准，物美价廉的产品与诚信经营，构筑起公司全球化的市场网络、精品汇聚。我们致力于汽车音响，设计及销售工作，专注的企业品牌--倚野狼系列汽车音响产品，远销中国海内外，期待您的支持与加盟，OEM、DOM加工，有您的支持与合作，将会创造双赢效益，共创企业美好未来。

   Yihua electrical factory in guangzhou city was established in 1997.We specialize in developing,designing manufacturing and selling audio products for cars.Our products are selling well in domestic and overseas marketr with a high reputaion ,especially in Southeast Asia, South Africa,and the middle East.

   yihua car audio series products,with amplifier woofers and without amplifier woofers,include Spuare,Flat shape ,Trapezium, car and Cirular woofers,wire kits,coaxial speakers,and Cval power capacitors. Our products are with wide varieties of styles,complete in specification,attrctive in design,and excellent in quality.could get a strong competition in the car audio ,car video field.We could offer products according to customer samples.

    Our company aims at producing the best products on the basis of scientific management and techenology innovation. lt's our target to yiyelang supply the best car audios ,and car video for you.We sinerely look forward to the successful cooperation with customers from all over the wold.

24 v to 12 v car power step-down converter

Car power converter to choose knowledge:

A: car power converter:

Is the dc-dc converter, car power converter (DC/DC) converter is widely used in remote and data communication, computer, office automation equipment, industrial instrumentation, military, aerospace and other fields, involving the from all walks of life of the national economy.

According to the size of the rated power, DC/DC converter can be divided into 1. 6 w to 250 w, 250 w ~ 750 w, 750 w ~ 1 kw, 3 kinds big. Into the 1990 s, a DC/DC converter in low power within the scope of the growth rate increased significantly, among them 6 w - 250 WDC/DC converter has the highest growth rate, this is because they used for DC measurement and test equipment, computer display system, computer and military communications systems. Due to the high speed of the microprocessor, a DC/DC converter from the low power to the direction of development is the inevitable trend of power, so the 250 w ~ 750 w DC/DC converter's growth is faster, this is it for the service of medical and laboratory equipment, industrial control equipment, telecommunications equipment, multiplex communication and sending equipment, DC/DC converter in remote and digital communication field has a broad application prospect.

Car power converter is used in large truck, bus, converted to dc 12 v, 24 v dc for car audio, subwoofer, navigation, vehicle traveling data recorder and other automotive electrical power supply.

Products adopt advanced PWM chip technology, the power conversion work in audio frequency range, while greatly reduce the volume and weight of the machine, make the circuit work in the absence of noise. This product design with multiple protection circuit, 1. 2 short circuit protection overload protection 3. Direct protection 4. Power of memory. In use, can effectively protect electrical appliances and automotive circuit when the output current more than the rated output, can quickly cut off the output circuit, and earnestly protect the safety of electrical equipment.

2: the installation method of use:

1, place the step-down transformer in ventilation, dry environment, and make appropriate fixed.

2, will be 24 v input connected to the power connectors,. Red line to the anode, yellow line by car key switch line (ignition switch line), the black line connect the cathode.

3, use 12 v output with the 12 v electrical connection. Red line connect the anode. Yellow line ACC (REM) line of electric equipment. Black line connect the cathode.

* with electric appliance's long-term working current should be less than the rated current of step-down transformer. Please get insulation treatment after wiring, in order to prevent the short-circuit phenomenon.

4, turn on the power of the car to power a step-down transformer, step-down transformer indicator.

5, turn on the power of the electric switch, can work normally.

3: products use notice:

1, please don't more than rated current use for a long time, lest cause failure.

2, when the car engine shut down, please do not use this product for a long period of time in order to avoid because of the battery voltage is too low is inconvenience to start the car.

3, please strictly abide by the matters needing attention with the electrical use of this product.

4, and cannot be used in high temperature, damp and dusty place this product.

5, please don't decomposition, innovation to our products.

Four: how to choose a suitable for your car power converter:

1: if your car stereo is a 12 v MP3 machine, can choose 10 a 24 12 v step-down transformer.

2: if your car stereo is one of the 12 v CD or DVD host, you can choose to turn 15 ~ 20 a 24 a 12 v step-down transformer.

3: if your car stereo is one of the 12 v CD or DVD host, plus a subwoofer, suggestion choice 30 a 24 12 v step-down transformer.

4: if your car stereo is one of the 12 v CD or DVD host, plus a subwoofer, coupled with the electric equipment such as navigation screen recommendation choose 30 a 24 12 v step-down transformer.

24V转12V 车载电源降压器转换器

车载电源转换器选购知识：
一：车载电源转换器说明：

车载电源转换器是直流-直流变换器，（DC/DC）变换器广泛应用于远程及数据通讯、计算机、办公自动化设备、工业仪器仪表、军事、航天等领域，涉及到国民经济的各行各业。
按额定功率的大小来划分，DC/DC变换器可分为1。6W～250W，250W～750W、750W～1KW，3大类。进入20世纪90年代，DC/DC变换器在低功率范围内的增长率大幅度提高，其中6W～250WDC/DC变换器的增长率最高，这是因为它们大量用于直流测量和测试设备、计算机显示系统、计算机和军事通讯系统。由于微处理器的高速化，DC/DC变换器由低功率向中功率方向发展是必然的趋势，所以250W～750W的DC/DC变换器的增长率也是较快的，这主要是它用于服务性的医疗和实验设备、工业控制设备、远程通讯设备、多路通信及发送设备，DC/DC变换器在远程和数字通讯领域有着广阔的应用前景。

车载电源转换器是应用于大货车，客车上，将直流24V转换为直流12V,为汽车音响、低音炮、导航仪、行车记录仪等车用电器供电。
产品采用先进的PWM芯片技术研制而成，电源转换工作于超音频范围，在大幅度减小整机的体积和重量的同时，使电路工作在无噪声状态。本产品设计有多重保护电路，1.短路保护2.过载保护3.直通保护4.断电记忆。在使用中能有效地保护电器和汽车电路，当输出电流超过额定输出时，能迅速切断输出电路，切实保护用电设备的安全。

二：安装使用方法：
1、将降压器放置于通风干燥的环境，并做好适当的固定。
2、将24V输入端与供电接头连接，。红色线接正极，黄色线接车匙开关线（点火开关线），黑色线接负极。
3、将12V输出与12V用电器连接。红色线接正极。黄色线接电器的ACC（REM）线。黑色线接负极。
*用电器的长期工作电流应小于降压器的额定电流。接线之后请做好绝缘处理，以防止发生短路现象。
4、开启车上的电源给降压器供电，降压器的指示灯亮。
5、开启电器的电源开关，便可正常工作。

三：产品使用注意事项：
1、请不要长时间超过额定电流使用，以免引起故障。
2、汽车发动机关闭时请不要长时间使用本品，以免因电瓶电压太低而使汽车不便启动。
3、请严格遵守用电器的注意事项使用本品。
4、不能在高温、潮湿、多尘处使用本品。
5、请不要对本产品进行分解、改造。

四：如何选择一台适合你的车载电源转换器：

1：如果你的汽车音响是一台12V的MP3机，可以选择10A的24转12V降压器。
2：如果你的汽车音响是一台12V的CD或DVD主机，可以选择15A~20A的24转12V降压器。
3：如果你的汽车音响是一台12V的CD或DVD主机，加一台低音炮，建议选择30A的24转12V降压器。
4：如果你的汽车音响是一台12V的CD或DVD主机，加一台低音炮，再加上导航屏幕等电器建议选择30A的24转12V降压器。
5：如果你还是不明白，请与我们的在线客服联系。