Microchip Technology PAC1710, Руководство пользователя

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Evaluation Board Demonstration
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2015 Microchip Technology Inc. DS50002367A-page 39
5.3 MOMENTARY PULSE CURRENT SOURCE (AMPLITUDE) –
ROTARY SWITCH 2
Rotary Switches 2 and 3 can be used to generate current spikes of varying amplitude
and duration (see
Section 3.6.3 “Pulse Current Source” ). To demonstrate amplitude
changes, complete the following steps:
1. Turn all rotary switches to the “0” position.
2. Ensure J15 is open. This increases pulse width so the demonstration is easier to
see.
3. Start the V
SENSE
range plot used in the previous demonstration.
4. Turn Rotary Switch 3 to position “4”.
5. Turn Rotary Switch 2 to position “1” and press Switch 4 (Pulse Trigger button).
6. Turn Rotary Switch 2 to position “2” and press Switch 4 (Pulse Trigger button).
7. Continue turning Rotary Switch 2, one position at a time, and pressing Switch 4.
Observe the plot ( Figure 5-4 ).
FIGURE 5-4: Momentary Pulse Amplitude Plot.
8. After experimenting, you can stop the plot and export the data (see
Section 4.1.4 “Exporting and Importing the Plot Data” ) or leave it running for
the next demonstration.