STMicroelectronics STEVAL-IHT005V2, User Manual

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UM1631 Getting started
3 Getting started
3.1 Connection diagram
Figure 2 shows an image of the board with proper connection of each application.
Figure 2. Board connector
Note: Connect loads and voltage probes before applying line voltage.
3.2 How to operate the STEVAL-IHT005V2
Line voltage must be connected in position as described in Figure 2 . The demonstration
board can be operated with or without the load. Even if no load is connected to the
demonstration board, all signals are present and can be displayed on the oscilloscope.
Red LED D6 signals the board is properly supplied from the mains. It also signals that high
voltage is present on the demonstration board.
It is recommended, although not required, to turn both potentiometers to the OFF position
before powering the demonstration board. The board is ready to operate after passing all
initialization routines, like mains frequency recognition, that take approximately 2 s.
Potentiometer R65 controls T1 (T1635H) and potentiometer R66 controls T2 (ACST16).
Output power level is adjusted by changing the position of the related potentiometer. Power
regulation is divided into 5 steps where position 1 means minimum power and position 5
means maximum power. LED D11 for T1 (T1635H) and LED D12 for T2 (ACST16) signal