data brief for further information contact your local stmicroelectronics sales office. december 2011 doc id 022492 rev 3 1/4 4 STEVAL-IHT007V1 extension board with acs switches for stm8s discovery kit features direct drive of 110/220 vac loads opto-transistors to isolate the high voltage side zero voltage switching to synchronize triac / ac switch pulses with ac mains full wave on/off control (phase angle control is covered with steval-ihm029v1) rohs compliant description the STEVAL-IHT007V1 is an extension board for the stm8s discovery kit that provides a simple tool for control of ac loads with acs switches in markets accepting the stm8s discovery kit. the target application is small ac loads of up to 500 w, used in home appliances and home and building automation. www.st.com
circuit schematic STEVAL-IHT007V1 2/4 doc id 022492 rev 3 1 circuit schematic figure 1. circuit schematic ! - v 6 6 $ $ 6 0 p o w e r s e l e c t . 2 3 4 / 3 # ) . 0 ! / 3 # / 5 4 0 ! 6 s s i o ? 6 s s 6 # ! 0 6 d d 6 d d i o ? 0 ! 0 ! 0 ! 0 ! # . ( e a d e r 8 6 d d a 6 s s a 0 " 0 " 0 " 0 " 0 " 0 " 0 " 0 " 0 % 0 % # . ( e a d e r 8 0 % 0 # 4 3 0 # 4 3 0 # 0 # 0 # 6 s s i o ? 6 d d i o ? 0 # 0 # 0 ' 0 ' # . ( e a d e r 8 6 $ $ ' . $ 2 2 e s n & # * ( e a d e r ? $ : e n e r 6 $ . u & # 0 / 7 % 2 ? ' . $ 0 / 7 % 2 ? 6 # # n & # 5 0 # # 5 0 # # 5 0 # # k 2 k 2 + 2 6 $ $ ' . $ 0 / 7 % 2 ? ' . $ 0 / 7 % 2 ? ' . $ k 2 k 2 0 / 7 % 2 ? 6 # # 2 2 4 (
' 0 / 7 % 2 ? 6 # # 0 / 7 % 2 ? 6 # # * ( e a d e r ? $ . 6 $ $ 6 $ $ n & # 2 2 e s 6 a r i s t o r 6 $ $ k 2 " n & # 6 $ $ k 2 " n & # ' . $ ' . $ ' . $ ' . $ n & # ' . $ k 2 2 n & # n & # 2 2 0 + % # ! t r a n s i l / 5 4 # / - ' ! # 3
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STEVAL-IHT007V1 revision history 2 revision history table 1. document revision history date revision changes 16-nov-2011 1 initial release. 18-nov-2011 2 modified board name in the coverpage photo 16-dec-2011 3 modified features in cover page
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