Download STEVAL-IHT004V1

STEVAL-IHT004V1
AC timer demonstration board on HT triacs and ST7Lite1b
Data brief
Features
■
3 independent application programs
– Hand dryer with infrared sensor and
T1235H-6T switch
– Bathroom fan with humidity sensor and
ACS108 switch
– Multi-entrance room controller with push
button and BTB08-600SW switch
■
Two potentiometers for setting sensor
sensitivity and TRIAC turn-off delay
■
Capacitive power supply (680 nF capacitor
EPCOS B32923C3684
– 5 V ±10%
– Average output current: 16 mA
– Standby power losses < 0.3 W @ 230 V
■
Program selector (U2)
■
ICC connector for software adjustment
■
Free development area with hole matrix
available for application breadboard adaptation
■
Overvoltage protection is not implemented on
the board but some solder pads are available
to implement it in two different ways:
■
Varistor addition between mains voltage
■
Transil addition between TRIAC A2-G
terminals
■
RoHS compliant
STEVAL-IHT004V1
Description
The purpose of the demonstration board is to
promote the various types of applications where a
single AC switch is controlled in on/off full-phase
mode. The switch control is based on information
from a single sensor evaluated by an MCU.
July 2009
Doc ID 16016 Rev 1
For further information contact your local STMicroelectronics sales office.
www.BDTIC.com/ST
1/5
www.st.com
5
Demonstration description
1
STEVAL-IHT004V1
Demonstration description
This demonstration is a development tool that allows users to develop their own application.
Through hole technology is used for easy modification of the board for the desired function.
Three applications have been developed and are ready to use with this demonstration board
as the sensors are already implemented on the board (or have to be connected to the
header for the humidity sensor):
1.
2.
3.
Hand dryer (program 1)
–
Controlled load: heating resistor and fan in parallel
–
Sensor: infrared sensor using IR diode emitter (D5) and photo-transistor receiver
(Q4)
Bathroom fan (program 2)
–
Controlled load: low power fan
–
Sensor: humidity sensor (to be connected to P3 header)
Multi-entrance room light control (program 3)
–
Controlled load: light bulb, CFL lamp
–
Sensor: push button
As previously stated, this board can easily be modified.
For example, here is a list of other possible applications that can be considered thanks to
little software and hardware modifications:
2/5
●
Water heater thermostat
●
Household temperature control
●
Humidity control (wood storage)
●
Flood protection system (pump or valve control)
●
Motion detector (outside lightning)
●
The added advantages of this board are:
●
Spark free operation
●
No EMI or acoustic noise
Doc ID 16016 Rev 1
www.BDTIC.com/ST
Doc ID 16016 Rev 1
www.BDTIC.com/ST
LIGHTNING
TRIAC?GATE
HT?TRIAC
)##?RESET
'.$
2
2ES
-
*
(EADER?
2
#
#AP
N&
2
2
2ES
2
2
2ES
633
/3##,+).
/3#
2%3%4
+
2
6##
+
2
#AP
N&
#
+
2
6$$
0"!).33
0"!).3#+
0"!).-)3/
0"!).-/3)
0"!).#,+).
0"!).
0"!).
#
N&
6##
#
N&
2
'.$
2
+
2
)2?TRANSISTOR
LIGHT?BUTTON
07-?HUMIDITY
TRIAC?GATE
'.$
2ES
+
2ES
+
2
$
)2 $IODE
2
'.$
#
#AP 0
OL
U&
0! (3,4)#
0! (3!4)#
0! (3!407-
0! (3!407-
0! (3!407-
0! (3!407-)##$!4 !
0!-#/)###,+"2%!+
0! (3
.
$
$
:ENER 6
5
34&,)4%&"
#AP
N&
#
3WITCH?SPECIAL
'.$
2ES
2
'.$
#
#AP
N&
6##
'.$
#
#AP
N&
'.$
#
#AP
N&
2
2ES
#
N&
'.$
0
(EADER (
2ES
+
2
'.$
2
2ES
2
2ES
+
#
#AP
N&
3ENSOR
20OT
+
6##
4RANSIL $
6##
6##
LIGHT?BUTTON
'.$
#
N&
'.$
#
'.$
2
+
6##
2
+
1
)2%
0
0USH?BUTTON
2
K
6##
*
(EADER?
1
!#3
#
N&
6##
#AP
N&
2
+
6##
1
.0.
2
'.$
6##
1
"4"37
2ES
2
1
4(4
07-?HUMIDITY
)2?TRANSISTOR
0
-($28
2ES
2
+
2
)##?RESET
2
+
4RANSIL 2ES
$
2ES
2
2
6## 6##
LIGHTNING
$ELAY
20OT
+
6##
2
2ES
HT?TRIAC
Figure 1.
2
6##
STEVAL-IHT004V1
Circuit schematic
Circuit schematic
Schematic diagram
!-V
3/5
Revision history
3
STEVAL-IHT004V1
Revision history
Table 1.
4/5
Document revision history
Date
Revision
16-Jul-2009
1
Changes
Initial release.
Doc ID 16016 Rev 1
www.BDTIC.com/ST
STEVAL-IHT004V1
Please Read Carefully:
Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the
right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any
time, without notice.
All ST products are sold pursuant to ST’s terms and conditions of sale.
Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no
liability whatsoever relating to the choice, selection or use of the ST products and services described herein.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this
document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products
or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such
third party products or services or any intellectual property contained therein.
UNLESS OTHERWISE SET FORTH IN ST’S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED
WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS
OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT.
UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT
RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING
APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY,
DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE
GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK.
Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void
any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any
liability of ST.
ST and the ST logo are trademarks or registered trademarks of ST in various countries.
Information in this document supersedes and replaces all information previously supplied.
The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners.
© 2009 STMicroelectronics - All rights reserved
STMicroelectronics group of companies
Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America
www.st.com
Doc ID 16016 Rev 1
www.BDTIC.com/ST
5/5