1 2 3 4 +12 C2 100uF LM1 U3 FEEDBACK 1 +Vin D N G OUT N E 3 5 4 2 +5 D1 R R1 1K +12 S1 VCC 1 4 2 3 5 6 SW-DPDT-6 L1 L1 D2 SK54B C1 100uF +5 C3 100uF 1 2 3 4 U1 VCC D- D+ GND USB JP1 3 2 1 Header 3 JP2 1 2 3 4 5 Header 5 1 2 3 4 5 6 7 8 U4 IN1 IN2 IN3 IN4 IN5 IN6 IN7 GND ULN2003L 16 15 14 13 12 11 10 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 COM 9 VCC VCC JP7 1 2 3 4 5 Header 5 VCC +5 1 2 H3 1 2 H5 Title Size A4 Date: File: Number Revision 2013-1-4 E:\单单单\..\L298N.SCHDOC Sheet of Drawn By: 4 A B C D A B C D H1 2 1 H11 H8 8 7 6 5 4 3 2 1 +5 +5 H2 H 2 1 VSS VS OUT1 OUT2 OUT3 OUT4 ISEN A ISEN B +5 9 4 2 3 13 14 1 15 5 7 10 12 6 11 8 U2 IN1 IN2 IN3 IN4 EN A EN B GND L298N VCC 1N4007 D5 D6 D3 D4 1N4007 1N4007 D7 D8 D9 D10 1N4007 H7 +5 2 1 H VSS VS OUT1 OUT2 OUT3 OUT4 ISEN A ISEN B 9 4 2 3 13 14 1 15 5 7 10 12 6 11 8 U3 IN1 IN2 IN3 IN4 EN A EN B GND L298N +5 H12 8 7 6 5 4 3 2 1 H8 H9 2 1 +5 VCC D11 D12 1N4007 D13 D14 +12 1N4007 1N4007 D15 D16 D17 D18 1N4007 2 1 H4 2 1 H6 2 1 H8 2 1 H10 1 2 3