A Nonlinear Electrical Resonator as a Simple Touch-Sensitive Switch with Memory

• 作者: Lars Q. English Mauro David Lifschitz Sunil Acharya
• 来源期刊: 电路与系统(英文)
• 学科: 医学
• 关键词: NONLINEAR SWITCH ELECTRICAL RESONATOR BISTABILITY TOUCH Sensitivity
• 年，卷（期）: dlyxtyw_2013,（1）
• 页码范围: 1-5
• 页数: 5页
• 分类号: R73

摘要

We introduce a novel switching mechanism that relies on the bistability of a simple nonlinear electrical resonator which incorporates a varactor diode as its capacitive element. The switching action can be made fast and is self-contained in that no further circuitry is necessary. Unlike a flip-flop, whose state is flipped by applying a TTL pulse, this nonlinear switch can be engaged external to the circuit via magnetic, inductive or capacitive coupling;in this way, the switch becomes intrinsically touch-sensitive. Alternatively, the switching action can also be accomplished using frequency-shift-keying (FSK) modulation, which holds the promise of fast manipulation of the memory state. We demonstrate the potential application of these ideas by constructing a touch-sensitive LED lattice.