<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.6.0">
<drawing>
<board>
<plain>
</plain>
<libraries>
<library name="transistor">
<packages>
<package name="TO5">
<description>&lt;b&gt;TO 5&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="rcl">
<packages>
<package name="0207/10">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
type 0207, grid 10 mm</description>
</package>
<package name="C050-025X075">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 5 mm, outline 2.5 x 7.5 mm</description>
</package>
</packages>
</library>
<library name="74xx-us">
<packages>
<package name="DIL14">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="diode">
<packages>
<package name="DO35-10">
<description>&lt;B&gt;DIODE&lt;/B&gt;&lt;p&gt;
diameter 2 mm, horizontal, grid 10.16 mm</description>
</package>
</packages>
</library>
<library name="con-lstb">
<packages>
<package name="MA08-2">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="Q1" library="transistor" package="TO5" value=""/>
<element name="R1" library="rcl" package="0207/10" value="1K"/>
<element name="R2" library="rcl" package="0207/10" value="5.6K"/>
<element name="R3" library="rcl" package="0207/10" value="1.5K"/>
<element name="IC1" library="74xx-us" package="DIL14" value="7404N"/>
<element name="C1" library="rcl" package="C050-025X075" value="15pF"/>
<element name="R5" library="rcl" package="0207/10" value="2.7K"/>
<element name="R6" library="rcl" package="0207/10" value="3.9K"/>
<element name="C2" library="rcl" package="C050-025X075" value="15pF"/>
<element name="D1" library="diode" package="DO35-10" value="1N645"/>
<element name="D2" library="diode" package="DO35-10" value="1N645"/>
<element name="D3" library="diode" package="DO35-10" value="1N645"/>
<element name="D4" library="diode" package="DO35-10" value="1N645"/>
<element name="D5" library="diode" package="DO35-10" value="1N645"/>
<element name="Q2" library="transistor" package="TO5" value=""/>
<element name="Q3" library="transistor" package="TO5" value=""/>
<element name="R4" library="rcl" package="0207/10" value="1.5K"/>
<element name="R7" library="rcl" package="0207/10" value="1.8K"/>
<element name="R8" library="rcl" package="0207/10" value="470"/>
<element name="D6" library="diode" package="DO35-10" value="1N3606"/>
<element name="D7" library="diode" package="DO35-10" value="1N3606"/>
<element name="SV1" library="con-lstb" package="MA08-2" value="">
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="MPN" value=""/>
<attribute name="MF" value=""/>
<attribute name="OC_FARNELL" value="unknown"/>
</element>
</elements>
<signals>
<signal name="VCC">
<contactref element="IC1" pad="14"/>
<contactref element="R4" pad="2"/>
</signal>
<signal name="GND">
<contactref element="IC1" pad="7"/>
<contactref element="Q1" pad="1"/>
<contactref element="D1" pad="A"/>
</signal>
<signal name="-15V">
<contactref element="R3" pad="1"/>
<contactref element="R2" pad="1"/>
<contactref element="R6" pad="1"/>
<contactref element="R7" pad="1"/>
</signal>
<signal name="VSS">
<contactref element="R3" pad="2"/>
<contactref element="D5" pad="C"/>
<contactref element="Q2" pad="1"/>
</signal>
<signal name="DRIVEH">
<contactref element="IC1" pad="1"/>
<contactref element="SV1" pad="2"/>
</signal>
<signal name="N$1">
<contactref element="IC1" pad="2"/>
<contactref element="R1" pad="1"/>
<contactref element="C1" pad="1"/>
</signal>
<signal name="N$2">
<contactref element="R1" pad="2"/>
<contactref element="Q1" pad="2"/>
<contactref element="R2" pad="2"/>
<contactref element="C1" pad="2"/>
</signal>
<signal name="!DRIVEL">
<contactref element="IC1" pad="3"/>
<contactref element="SV1" pad="1"/>
</signal>
<signal name="N$3">
<contactref element="R5" pad="1"/>
<contactref element="C2" pad="1"/>
<contactref element="IC1" pad="4"/>
</signal>
<signal name="N$4">
<contactref element="R5" pad="2"/>
<contactref element="R6" pad="2"/>
<contactref element="C2" pad="2"/>
<contactref element="Q2" pad="2"/>
</signal>
<signal name="MUT">
<contactref element="Q1" pad="3"/>
<contactref element="Q2" pad="3"/>
<contactref element="R8" pad="1"/>
</signal>
<signal name="N$8">
<contactref element="D3" pad="C"/>
<contactref element="D4" pad="A"/>
</signal>
<signal name="N$9">
<contactref element="D4" pad="C"/>
<contactref element="D5" pad="A"/>
</signal>
<signal name="-UB">
<contactref element="D2" pad="C"/>
<contactref element="D3" pad="A"/>
<contactref element="D6" pad="A"/>
</signal>
<signal name="N$7">
<contactref element="IC1" pad="5"/>
<contactref element="Q3" pad="3"/>
<contactref element="R4" pad="1"/>
</signal>
<signal name="N$10">
<contactref element="Q3" pad="1"/>
<contactref element="R7" pad="2"/>
<contactref element="D6" pad="C"/>
</signal>
<signal name="TTL_IN">
<contactref element="IC1" pad="6"/>
<contactref element="SV1" pad="4"/>
</signal>
<signal name="N$11">
<contactref element="Q3" pad="2"/>
<contactref element="R8" pad="2"/>
<contactref element="D7" pad="A"/>
</signal>
<signal name="+UB">
<contactref element="D1" pad="C"/>
<contactref element="D2" pad="A"/>
<contactref element="D7" pad="C"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
