| 摘要 |
This invention is about an electronic controlling device for toy vehicle using a small motor. More specifically, when the part with pick-up coil approaches processed elements which are composed of induced material. To be picked up or not at a fixed distance it decides to stop or more forward or in a reverse direction. The structure of this system is composed of resonance circuit with pick- up coil (PC) and capacitor(C2), standard frequency oscillator, tuning amplifier(3), alternating voltage detector(4), level detector(5), DC amplifier(6). Besides, there are relays for rotation direction of Motor and inverters for travelling of toy vehicle.
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