采用多个小型电源通常比使用单个大型电源更加经济实惠和可靠。例如,可采用单独的电池以提高可靠性。在多电源系统中,均等地分担负载是很重要的;否则,一个电源或许会试图承担整个负载的供电。本文将说明怎样通过级联LTC4370电路以容易地实现三个或四个电源的负载平衡。如图1所示,LTC4370控制器在输出电压之间具有适度差异的两个电源之间实现了电流均分。为了完美地平衡两侧中的电流,该控制器调节位于具 Using multiple small power supplies is often more cost-effective and reliable than using a single large power supply. For example, a separate battery can be used to improve reliability. In a multi-power system, it is important to share the load equally; otherwise, one power source may attempt to assume the entire load. This article shows how to easily load balance three or four power supplies by cascading the LTC4370 circuit. As shown in Figure 1, the LTC4370 controller achieves current sharing between two supplies with modest differences in output voltage. To perfectly balance the current in both sides, the controller adjusts itself