一种低功耗升压电路的研究与设计

Study and design of boost circuit with low power consumption

目的为了解决工业生产和日常生活中电池供电的便携式产品的电池使用寿命短、功耗高等问题。方法采用DC-DC型升压转换电路实现电池低压供电。结果实验数据表明,利用美信公司DC-DC转换芯片MAX859搭建的升压电路,电池能够在较低电压下正常使用。结论利用DC-DC升压转换电路,能够有效降低系统功耗,延长电池使用寿命,可以推广应用于众多电池供电的产品中。

Aim To prolong service life and reduce power consumption of the battery which is used in battery-powered portable devices in industrial production and daily life. Methods DC-DC boost conversion circuit is used to supply battery with low-voltage power. MAXIM corporation＇s chip MAX859 is a typical step-up DC-DC converter. Results The experimental data indicates that this method is feasible. And the batter can run normally under the lower voltage in the boost circuit which is built by MAXIM Corporation＇s chip MAX859. Conclusion DC-DC conversion circuit can efficiently reduce system power consumption, prolong service life of the battery. So the boost circuit can be generalized into the many battery-powered products.