SPV1040太阳能电池充电解决方案 - 模拟电源 -
图1.SPV1040方框图
图2.SPV1040简化应用电路图
图3.SPV1040输出并联连接图
图4.SPV1040输出串联连接图
采用SPV1040的太阳能电池充电器STEVAL-ISV006V2
STEVAL-ISV006V2: solar battery charger using the SPV1040
The SPV1040 is a high efficiency, low power and low voltage DC-DC converter that provides a single output voltage up to 5.2 V. Startup is guaranteed at 0.3 V and the device operates down to 0.45 V when coming out from MPPT mode. It is a 100 kHz fixed frequency PWM step-up (or boost) converter able to maximize the energy generated by few solar cells (polycrystalline or amorphous). The duty cycle is controlled by an embedded unit running an MPPT algorithm with the goal of maximizing the power generated from the panel by continuously tracking its output voltage and current.
The SPV1040 guarantees the safety of overall application and of converter itself by stopping the PWM switching in the case of an overcurrent or overtemperature condition.
The IC integrates a 120 mΩ N-channel MOSFET power switch and a 140 mΩ P-channel
MOSFET synchronous rectifier.
图6.太阳能电池充电器STEVAL-ISV006V2外形图
图7. STEVAL-ISV006V2电路图
太阳能电池充电器STEVAL-ISV006V2材料清单:
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