Control circuit and control method
A technology of control circuit and control method, applied in the direction of program control, computer control, general control system, etc., can solve the problems of insufficient interface and increase production cost, so as to reduce production input cost, save interface resources, and improve interface utilization rate. Effect
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Embodiment 1
[0020] The control circuit provided by the embodiment of the present invention includes: a main control chip, a plurality of switch modules and a power supply, each switch module includes a plurality of switches and triodes, the main control chip includes a plurality of input terminals and a plurality of output terminals, wherein, The number of output terminals is equal to the number of multiple switch modules, the number of input terminals is equal to the number of switches in the first switch module, and the first switch module is the switch module with the largest number of switches among the multiple switch modules; the triode of each switch module The base is correspondingly connected to one of the output terminals, the emitter of the triode of each switch module is connected to the first pole of the power supply, and the collector of the triode of each switch module is connected to the second pole of the power supply; in each switch module The first end of each switch is ...
Embodiment 2
[0062] For the control method provided by the embodiment of the present invention, refer to image 3 As shown in , the control method includes:
[0063] S301. Control a first output terminal of a plurality of output terminals of the main control chip to output a first level, and control output terminals other than the first output terminal to output a second level.
[0064] S302. Determine, according to the output level of the first output terminal and the input level of the input terminal, the closed or open states of the plurality of switches of the switch module connected to the first output terminal.
[0065] optional, see Figure 4 As shown in the S301 includes:
[0066] S401. If the transistor of the switch module of the control circuit is a PNP transistor, control the first output terminal of the multiple output terminals to output a low level, and control the output terminals other than the first output terminal to output a high level.
[0067] S402. If the transistor...
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