Sep 12, 2014 #1 J jmx66 Member level 5 Joined Nov 16, 2010 Messages 93 Helped 0 Reputation 0 Reaction score 1 Trophy points 1,288 Location France Visit site Activity points 2,045 Hi all, I found this schematic, and i want to know if there's no mistakes... In fact, motor current is about 2 A ,so what resistors values for TIP122 - TIP31 become TIP122 - ? It's for a road book, so no MCU, NE555 ... Thanks a lot. jm
Hi all, I found this schematic, and i want to know if there's no mistakes... In fact, motor current is about 2 A ,so what resistors values for TIP122 - TIP31 become TIP122 - ? It's for a road book, so no MCU, NE555 ... Thanks a lot. jm
Sep 12, 2014 #2 C chuckey Advanced Member level 6 Joined Dec 26, 2010 Messages 4,854 Helped 1,309 Reputation 2,624 Reaction score 1,281 Trophy points 1,393 Location Southampton and holiday cottage in Wensleydale (UK Visit site Activity points 31,695 Looks OK. Never ever close both S1 and S2, you will overheat the power transistors. Frank
Sep 13, 2014 #3 J jmx66 Member level 5 Joined Nov 16, 2010 Messages 93 Helped 0 Reputation 0 Reaction score 1 Trophy points 1,288 Location France Visit site Activity points 2,045 Thanks a lot for your reply. For more current if TIP31 replaced by TIP122, resistor values changed? Thanks a lot. jm
Thanks a lot for your reply. For more current if TIP31 replaced by TIP122, resistor values changed? Thanks a lot. jm
Sep 13, 2014 #4 T th3gr8 Member level 4 Joined Aug 27, 2013 Messages 68 Helped 6 Reputation 12 Reaction score 6 Trophy points 8 Visit site Activity points 398 jmx66 said: Thanks a lot for your reply. For more current if TIP31 replaced by TIP122, resistor values changed? Thanks a lot. jm Click to expand... Yes you can .. But you should have a supply of higher current because Tip31 supports 3A flow and Tip122 supports 5A flow ..
jmx66 said: Thanks a lot for your reply. For more current if TIP31 replaced by TIP122, resistor values changed? Thanks a lot. jm Click to expand... Yes you can .. But you should have a supply of higher current because Tip31 supports 3A flow and Tip122 supports 5A flow ..
Sep 13, 2014 #5 J jmx66 Member level 5 Joined Nov 16, 2010 Messages 93 Helped 0 Reputation 0 Reaction score 1 Trophy points 1,288 Location France Visit site Activity points 2,045 Thanks a lot. Don't worry about power supply... Alternator + bridge output of Yam 500XT: so 60 Watt isn't a problem. Jm
Thanks a lot. Don't worry about power supply... Alternator + bridge output of Yam 500XT: so 60 Watt isn't a problem. Jm
Sep 14, 2014 #6 F FlapJack Full Member level 6 Joined Sep 16, 2010 Messages 399 Helped 103 Reputation 206 Reaction score 100 Trophy points 1,308 Location USA Visit site Activity points 3,822 Aren't some of the base resistors missing.
Sep 14, 2014 #7 J jmx66 Member level 5 Joined Nov 16, 2010 Messages 93 Helped 0 Reputation 0 Reaction score 1 Trophy points 1,288 Location France Visit site Activity points 2,045 Thanks a lot first, Right for upper transistor, so mistake on this schematic? For lower 2.2 KOhm and 10 KOhm. Regards. jm
Thanks a lot first, Right for upper transistor, so mistake on this schematic? For lower 2.2 KOhm and 10 KOhm. Regards. jm