ASTi AI-Delta Техническое руководство пользователя - Страница 14
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Печатать страницуAI-Delta Technical User Guide (Rev. A, Ver. 0)
4.1.2 Control input as analog input
To use the control input as an analog input, insert a resistance between the control input and con-
trol input ground pins. The four-channel selector knob, for example, contains a switch that
changes the resistance between the control input and control input ground pins.
4.2 Digital output
The digital output circuitry consists of an opto-isolated, solid-state relay for switching power to
external loads. The following table summarizes the AI-Delta's digital output opto-isolated field-
effect transistor (FET) values:
Type
Maximum continuous current rating
Maximum power dissipation
8
Figure 8: Analog In
Table 4: Digital output rating and dissipation
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Opto-isolated FET
120 mA
300 mW