FEEDBACK SEPARATED CIRCUIT AND METHOD FOR DETECTING AN ARRANGEMENT OF MOTHER BOARD AND DAUGHTER BOARD

摘要

The present disclosure discloses a feedback separated circuit and a method for detecting a combination of mother board and daughter boards, said circuit comprising: a mother board, provided with a controller; and a plurality of daughter boards separated from said mother board, each daughter board being provided with a resistor having a different resistance, one end of each resistor being connected with one single feedback end of said controller, the other end of each resistor being connected with the ground. Through the circuit provided by the present disclosure, not only the combination mode between the mother board and the daughter boards can be recognized, but also the cost thereof is not increased.

主权项

1. A feedback separated circuit, comprising:
a mother board, provided with a controller; and a plurality of daughter boards separated from said mother board, each daughter board being provided with a resistor having a different resistance, one end of each resistor being connected with one single feedback end of said controller, the other end of each resistor being connected with the ground, wherein when one of the plurality of daughter boards is energized, the controller of said mother board compares a voltage of said feedback end with one of a plurality of voltage thresholds preset in said controller to determine the daughter board which is electrically connected with the mother board currently, and then output a corresponding voltage to said daughter board, the number of said voltage thresholds being equal to the number of said daughter boards.