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Introduction to Power Management for Sensors

In their everyday lives, people are surrounded by many different types of sensor devices. The design of the power-management circuit is an extremely important aspect of a sensor because a well-designed power management circuit can easily extend the lifespan of the related sensors by more than 50%. Power management circuits for sensor devices should be designed according to the sensors’ surrounding conditions. There are three typical conditions in which different power management circuit designs are required:

1. Power Management Using Available Ambient Energy
2. Power Management Using Special Energy Sources
3. Power Management Where Supplemental Energy is Difficult to Reach

In this article, popular power management circuit configurations for the three different conditions are introduced. All these circuits have proven effective in helping sensors work properly and efficiently. Many of the parts necessary to construct the circuits introduced in this article have been developed and silicon proven by Vidatronic.