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2SC0108T2A0-17 Scheda tecnica(PDF) 5 Page - List of Unclassifed Manufacturers |
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2SC0108T2A0-17 Scheda tecnica(HTML) 5 Page - List of Unclassifed Manufacturers |
5 / 32 page 6&$/( 'ULYHU Description and Application Manual Internet: w ww.IGBT- Drive r .com Page 5 The VL/Reset pin is used to define the logic level and to erase the error memory. The circuits for 5V and 15V logic levels are shown in Fig. 11. There’s more on this topic from page 23 onwards. Signal inputs and status outputs The PWM signals of the control electronics are applied to inputs A and B. Depending on the selected mode, these inputs have a different function: in direct mode, input A is assigned directly to channel 1, whereas input B controls channel 2. In half-bridge mode, the PWM signal is applied to input A whereas input B carries the release signal for both channels. There’s more on this topic on page 25. The status outputs are “open collector” outputs and can thus be simply matched to all logic levels and families. The outputs lead simply to the logic and are connected to the logic supply via a pull-up resistor. There’s more on this topic on page 25. Connecting the IGBTs The auxiliary emitter (emitter control terminal) is connected to output “Ex” (where “x” stands for the number of the drive channel in multi-channel drivers). In the same way, the gate is connected to output “Gx”; but via a gate resistor or a gate resistor network. There’s more on this topic from page 27 onwards. The collector sense terminal “Cx” is connected via a diode to the collector of the IGBT. On this point, read the hints from page 28 onwards and any additional hints in the data sheet of the SCALE driver used. Defining the turn-off threshold The turn-off threshold and the response time are defined by a resistor connected between the terminal “Rthx” and the emitter terminal “Ex”. An explanation of these terms is found from page 17 onwards. A table or a diagram of the turn-off threshold and the response time can be obtained from the data sheet of the relevant SCALE driver. |
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