R
Russell L. Simpson
Researcher at Motorola
Publications - 3
Citations - 158
Russell L. Simpson is an academic researcher from Motorola. The author has contributed to research in topics: Battery (vacuum tube) & Voice coil. The author has an hindex of 3, co-authored 3 publications receiving 158 citations. Previous affiliations of Russell L. Simpson include Burton Snowboards.
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Patent
Method and system for providing induction charging having improved efficiency
TL;DR: In this paper, a battery charging system can include a secondary coil having a plurality of turns for receiving magnetic flux produced by a primary coil (220) of the induction charger, and a control circuit (254) for controlling a number of turns of the secondary coil that are used in generating an output voltage for charging a cell.
Patent
Speaker voice coil antenna
TL;DR: In this article, a band pass circuit was designed to prevent a radiating signal from the radiating circuit from interfering with an audio drive circuit driving the speaker. But, this arrangement can be designed to avoid problems involving electrostatic discharge sensitivity, electromagnetic interference coupling between the antenna and the voice coil, total radiated power, and specific absorption rate.
Patent
Battery circuit with non-volitable memory and thermistor on a single line
TL;DR: In this article, a system consisting of a battery charger (278) and a battery (202) includes a thermistor (230), a voltage identifying element (240), a switch (244), a memory device (232), a battery data contact (228), and a clock contact (224).