晨星的Sunsaver Duo是一个先进的PWM用于远程太阳能充电应用的两个电池控制器。
The unique advantages of the Sunsaver Duo are:
•两个电池充电;一个主要电池充满电，过量的太阳能电源被路由到第二电池。
• Optional Back-lit Remote Meter
• Easy Installation
• Lower Cost
Morningstar的Sunsaver Duo是一个高级PWM两个电池控制器，可用于许多远程应用。
这个产品将收取两个单独的和孤立的batteries at the same time, such as an engine battery, WiFi transmitter battery, remote solar system. This is based on user selectable priorities. The SunSaver Duo employs Morningstar’s legendary SunSaver controller technology, whose long-term track record for high reliability and improved battery charging is well-recognized in the solar industry. This controller also has the option of a backlit remote meter which may be mounted in or on a wall. This remote meter displays digital and pictorial status information about the solar power system. Most of our customers require this comprehensive remote meter.
The SunSaver Duo is epoxy encapsulated for environmental protection, is user adjustable via DIP switch or connection to a personal computer, and has an optional remote temperature sensor.
Two Battery Charging
Solar charge current is shared between the two batteries based on a user selectable priority. When one battery is fully charged, all of the charge current flows to the other battery.
提供有用的信息
远程仪表和LED的显示系统状态数据和任何系统错误。自定义图标和背部照明使仪表易于阅读和理解。
Lower Cost
两个电池充电消除了两个独立的太阳能充电系统的增加的成本，并且需要在电池之间隔离。
Easy to Install
The controller is installed near the batteries using the clearly labeled large wire terminals. The remote meter may be mounted in the wall or on the wall using the included frame. Also includes the meter wiring with RJ-11 connector.
Longer Battery Life
四级系列PWM脉冲充电和温度补偿增加了电池的使用寿命。
Extensive Electronic Protections
The controller will not be damaged by wiring mistakes during installation. There are no fuses to replace, and the controller will automatically re-set after a wiring mistake.
Highly Reliable
Epoxy encapsulation protects the controller against dust and high humidity. Efficient electronics and a conservative thermal design allow the controller to operate reliably at high temperatures.
Dimensions: 6.7” x 2.2” x 1.6”. Units weigh .57 lbs. 5 year warranty, 15 year estimated life.
什么是pwm？
脉冲宽度调制（PWM）是通过切换太阳系控制器的功率器件来实现恒压电池充电的最有效手段。在PWM调节时，根据电池的状态和充电需求从太阳能阵列锥度的电流。
Why is there so much excitement about PWM?
Charging a battery with a solar system is a unique and difficult challenge. In the "old days", simple on-off regulators were used to limit battery outgassing when a solar panel produced excess energy. However, as solar systems matured it became clear how much these simple devices interfered with the charging process.
The history for on-off regulators has been early battery failures, increasing load disconnects, and growing user dissatisfaction. PWM has recently surfaced as the first significant advance in solar battery charging.
PWM solar chargers use technology similar to other modern high quality battery chargers. When a battery voltage reaches the regulation setpoint, the PWM algorithm slowly reduces the charging current to avoid heating and gassing of the battery, yet the charging continues to return the maximum amount of energy to the battery in the shortest time. The result is a higher charging efficiency, rapid recharging, and a healthy battery at full capacity.
此外，这种新的太阳能电池充电方法应与PWM脉冲有一些非常有趣和独特的益处。这些包括：
1. Ability to recover lost battery capacity and desulfate a battery.
2.显着提高电池的充电接受。
3. Maintain high average battery capacities (90% to 95%) compared to on-off regulated state-of-charge levels that are typically 55% to 60%.
4.均衡漂移电池单元。
5.减少电池加热和恶作剧。
6.自动调整电池老化。
7.自我调节用于太阳能系统中的电压降和温度效应。
这项技术如何帮助我？
The benefits noted above are technology driven. The more important question is how the PWM technology benefits the solar system user. Jumping from a 1970’s technology into the new millennium offers:
• Longer battery life:
• reducing the costs of the solar system
•减少电池处理问题
• More battery reserve capacity:
• increasing the reliability of the solar system
•减少负载断开连接
•减少电池尺寸以降低系统成本的机会
• Greater use of the solar array energy:
• get 20% to 30% more energy from your solar panels for charging
• stop wasting the solar energy when the battery is only 50% charged
• opportunity to reduce the size of the solar array to save costs
•更大的用户满意度：
•当您需要较少的钱时，获得更多电源!!
所有这些福利都经过测试和证实吗？
大量的测试和数据支持PWM的好处。附加更多信息，描述了技术和各种研究。晨星将继续我们正在进行的测试程序来改进PWM充电技术。随着时间的推移，将改善这些好处，并更清楚地用数字和图形定义。
Are all PWM chargers the same?
买家小心！许多太阳能电荷控制器，简单地切换FET而不是开关算法声称为PWM充电器。只有少数控制器实际上使用脉冲宽度调制（PWM）恒压充电算法。其余的是用更便宜且效率更低的各种算法切换FET。MORNAYSTAR于1997年获得专利，用于基于真正的PWM开关和恒压充电的高效电池充电算法。所有MOINTSTAR产品都使用该专利算法。