STEVAL-ILL004V1 STMicroelectronics, STEVAL-ILL004V1 Datasheet - Page 6

• Manufacturer Part Number: STEVAL-ILL004V1
• Description: EVAL BOARD PHASE CONTROL DIMMER
• Manufacturer: STMicroelectronics
• Type: Power Management: Lighting and Ballast Controllerr

Specifications of STEVAL-ILL004V1

• Design Resources: STEVAL-ILL004V1 Gerber Files STEVAL-ILL004V1 Bill of Material STEVAL-ILL004V1 Schematic
• Contents: Fully Assembled Evaluation Board
• Product: Display Modules
• For Use With/related Products: ST7FLITE09
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-5081

Universal motor speed control
2
Note:
Note:
6/38
Universal motor speed control
The STEVAL-ILL004V1 Evaluation Board was developed to demonstrate ST’s solution for
driving a universal motor or other types of AC loads. The board is shown in
left side there are two connectors:
●
●
Due to the versatility of the board, the load can be controlled by a push-button (“BUTTON”)
or a potentiometer (“POT.”). The way it is controlled needs to be selected by using Switch S2
before the input voltage is connected.
The push-button should NOT be used to control the motor speed, but only for adjusting the
brightness of a bulb when a lamp is connected as the load (the light dimmer). The
potentiometer should be used to control motor speed.
An additional feature that can be enabled on this board is temperature control through the
Negative Temperature Coefficient (NTC) component. Although it is not a standard part of
the board, the microcontroller has free ADC converters (PINs for the necessary thermistors
are available). The maximum power range used on the evaluation board depends on the
TRIAC and the size of its heat sink. For high power (higher than 350 W), it is necessary to
use the heat sink on the TRIAC because of the power dissipation. The TRIAC heat sink can
be as large as it needs to be because there is enough place on the board. For heat sink
calculations, see
The application is independent of the input frequency because of the switch frequency
detection, so 50 Hz or 60 Hz can be selected without any problem. The input voltage can be
from 110 V
The supply current for the microcontroller is obtained from the input voltage.
The capacitive power supply in this application is designed to ensure that there is enough
energy to run it, even with the input voltage of 110 V (IOUT = 6.11 mA) due to the fairly large
capacitor being used (C4 = 330 nF). The output power also depends directly on the input
voltage. For example, the brightness of a lamp for an input voltage of 110 V is almost half
the brightness of a lamp for an input voltage of 230 V.
Figure 3.
The mains connector for the input voltage supplied to the board
The connector for the universal motor
ac
STEVAL-ILL004V1 universal motor speed control evaluation board
to 240 V
Section : How to calculate the size of the heat
ac
.
sink.
Figure
3. On the
AN2263