Signal magnifying multiple circuit with digital control
A control circuit and signal amplification technology, which is used in electrical/magnetic exploration, radio wave measurement systems, and re-radiation of sound waves. , to prevent the effect of jitter and interference
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[0009] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0010] Refer to attached figure 1 , 2 , this embodiment includes a key switch 1, an anti-static debounce circuit 2, a cycle control state generating circuit 3 and a switch circuit 4; the key switch 1, an anti-static de-bounce circuit 2, a cycle control state generating circuit 3 and a switch circuit 4 Sequential connection; anti-static debounce circuit 2 includes switch debounce chip U 1 , U 1 Using the chip MAX6818, the input terminal IN of the chip MAX6818 1 through resistor R 1 ground, and the other input terminals are also grounded through resistors; at the same time, the input terminal IN 1 with key switch S 1 connection, key switch S 1 The other end is connected to the power supply V CC Connection; cycle control state generation circuit 3 includes counting / pulse distribution chip U 2 and by resistor R 3 , capacitance C 61 Composed of po...
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