| 摘要 |
<p>A process transmitter (100) suitable for coupling to a process loop (120) is disclosed. The process transmitter (100) includes a power regulator (210) adapted to receive a power signal on the process loop (120) and to provide a first signal (215) having a first voltage. Digital components (220) of the process transmitter (100) are electrically coupled to the power regulator (210) to receive power from the first signal (215). A step-up converter (230) is electrically coupled to the power regulator (210) and receives the first signal (215). The step-up converter (230) outputs a second signal (235) having a second voltage larger than the first voltage. Analog components (240) of the process transmitter (100) are electrically coupled to the step-up converter (230) to receive power from the second signal (235).</p> |
