CHOOSING THE RIGHT POWER FOR WIRELESS MEDICAL INSTRUMENTATION

摘要

As with many applications, low-power precision components have enabled rapid growth of portable and wireless medical instruments. However, unlike many other applications, medical products typically have much higher standards for reliability, run-time and robustness. As might be expected, much of this burden falls on the power system and its associated support components. Medical products must operate properly and switch seamlessly between various power sources such as an AC mains outlet, battery backup and even harvested ambient energy sources. Furthermore, great lengths must be taken to protect against and tolerate faults, maximize operating time when powered from batteries and ensure that normal system operation is reliable whenever a valid power source is present.