Yongping Xia, is employed by Navcom Technology, Torrance, California.
Yongping Xia
Yongping Xia
Areas of interest of the author: Measurement Supply Telephone
Publications on RadioLocman by the author Yongping Xia:
- Water-leak detector uses 9V batteriesA previously published Design Idea describes a practical gadget that has the potential to save a lot with little investment (Reference 1). However, the circuit uses 120 V line voltage and, as such, it is not that...Apr 18, 2025
- Battery automatic power-off has simpler designA previous Design Idea describes a simple way to automatically turn off a battery after a preset on period to save battery life (Reference 1). This Design Idea presents a simpler way to perform the same function...Nov 24, 2021
- Low-battery indicator uses fleapowerIt is always desirable to use a low-battery indicator that consumes as little power as possible. For a 9 V, 450-mAhr alkaline battery, a 50-µA low-battery indicator can by itself run the battery down in a...Mar 11, 2021
- Get power from a telephone line without disturbing itAn idle telephone line tempts designers to use its 48 V potential as a power source. However, Part 68 of the US Federal Communications Commission's telecommunications regulations states that any device that connects...Aug 2, 2016
