Dsg d  n q   www.edutek.ltd.uk P TownshendArialdo z @ @?"@y Xf"`NSupply9Hpp++g"`Np@PQ"`/=BC337V  8^ 8^ 8^ 8^z"j\ s1K pp "N/>H/@/HNH"g""@2p_Pp Input > 0.7vf"` V Supply9Hpp++g"` V p@PQ"` 7 = ; ; 8^ 8^ 8^z"r \ s1K pp "@ : p_Pp Input > 1.4v"S pTIP122D  8^ 8^ 8^ 8^"7  ~7  ""V  H  HV H"g"" cSolenoidؽ  4 4 4 4"  > @ ""  x "  ~g  g""x Z c0W0W40W40W4"V 7 >BV @7 @f""7 7 >27 @7 2""0 > 8H"7  >27 @ @ 2""7 7 >7 @7 """0 > x f"`Supply9Hpp++g"`p@PQ"`{=BC337V  8^ 8^ 8^ 8^z"'\ s1K pp " >H@HH"g""@~p_Pp Input > 0.7v"@@cRelayLh 4 4 4 4" >_>22@@_@""<hc0W0W40W40W4" >_B_>2@_@@_2""8XHf8H" B_>B@_@@f"" ^`"">_>b@_@@_``""Xh">b`@""x R.Motor (# PF PF PF"`/IRF520 0W 0W 0W  Xz"//^{/`{/"f"NТSupply9Hpp++"ކ"^b` `f"g"NpP"ކ" g"z"``\100K`'`'`' `'H?`'H?z""B@ ""Np Input > 4v"ކ" ""'`{NPFNPFNxiNxiN"PmBuzzer hf" ТSupply9Hpp++" ^' ``''f"""~>_@_@_""" pP Input > 1.4v"H.0W0W40W40W4""^  `""(Xh"/^ `/`/""/>_b{ @_ `{/`{""(6Xth"//>_b{/`{/@_"f"r ТSupply9Hpp++g"r pPz" ` @1K pp "V p Input < 0.7v"S 02BC559 ; ; ;V  8^"h ( (JBulb (# PF PF PF"  ^ ` ` f"""  ^{ `{ """("""$   $z""x RGBulb (# PF PF PF"N/>bN@/@/`f"""  ^\ `\  "g"" />@/@@/ "z""("!/// /""d 2{\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\ql \x\fs24\b DRIVERS\par \ql \x\fs20 The following ar all examples of driver circuits that can be \x\fs20 used on the outputs of logic gates for example. They provide \x\fs20 current drive by using various types of transistors. The devi\x\fs20 ces shown are suggested ones and can be changed. Remember to \x\fs20 check that the transistor can deliver enough current by check\x\fs20 ing Ic and also use a protection diode if driving inductive l\x\fs20 oads (anything with a coil in it!).} }dmg ){\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\ql \x\fs20 Simple NPN driver\par \ql \x\fs20 Can provide up to 400mA} }d @@ ){\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\ql \x\fs20 Simple NPN driver\par \ql \x\fs20 Note using a protection diode} }d ){\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\ql \x\fs20 NPN Darlington driver\par \ql \x\fs20 Can provide up to 5A} }d@ {\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\ql \x\fs20 MOSFETdriver\par \ql \x\fs20 Can provide up to 10A} }d)x {\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\ql \x\fs20 Integrated Darlington driver\par \ql \x\fs20 Can provide up to 500mA, useful if you need lots of drivers} }d {\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\ql \x\fs20 Simple PNP driver\par \ql \x\fs20 Can provide up to 400mA. \par \ql \x\fs20 Note switches on with low input} }@ ?"@