Figure 20. On/Off Control In Basic Mode (Dc Command On The Left And Pulse Command On The Right) - STMicroelectronics STEVAL-GLA001V1 User Manual

3.3.2 ON/OFF basic mode
Figure 20.
push
Triac push
button
Triac gate
command
V
MAINS
I
T
This mode is selected through the MODE switch (refer to
After you push the AC switch/Load button (Tx) ON, the
ZVS, lights ON the corresponding LED (LEDx) and then activates the corresponding AC switch gate (Gx).
To stop the AC switch/load, push the AC switch/Load button (Tx) ON again: the gate is deactivated and the LED
is switched OFF.
By default, the gate command is a pulsed signal with a duration equal to the "tp" value. You can modify this gate
ON duration by pushing on the "TP+" button (to increase ON time) or "TP-" button (to decrease ON time). The
gate command becomes a DC signal when the "tp" value reaches the half-period.
All parameters (range, default value, unit, step, etc.) used to configure the load control for this mode are
described in Section 3.6 User
mode, refer to
UM2304 - Rev 3
ON/OFF control in basic mode (DC command on the left and pulse command on the right)
push
Wait for next zero voltage crossing
Current in the Triac
turns off at next
interface. For more details regarding the hardware components involved in this
Section 2.5 Hardware function
push
Triac push
button
tp tp
Triac gate
command
Wait for next zero voltage crossing
V
MAINS
zero cu rrent
cros sin g
I
T
Section 3.3.1 Mode
NUCLEO-F030R8
description.
Operating mode
push
Current in the Triac
turns off at next
zero cu rrent
selection).
development board waits for the next
UM2304
cros sin g
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