Hi all,
i had a few problems with the 74HC240 motor-driver. So i designed a new (?)
motor driver for higher current output.
Features:
- Free half 74 HC 240
- Flexible control with a jumper
- Low Cost and easy to build
- Wide operating voltage range (2V - 6V)
- High current output
Up to 800 mA with PN2222 and PN2907 transistors
- Smoke proof (no self-destructing input-combination)
- Low current brake mode
- Ultra low current standby mode (for solar engines)
Hi all, i had a few problems with the 74HC240 motor-driver. So i designed a new (?) motor driver for higher current output. Features: - Free half 74 HC 240 -...
Manfred Schaffran
Manfred.Schaffran@...
Jun 22, 2002 2:51 pm
Hi Manfred, Like minds think alike! I couldn't help but notice some similarity to my earlier "HC-Bridge" circuit using 2 wires for forward, reverse,standby and...
That comment below referred to the two wire control option but the original three wire SH-Bridge can certainly be used at 2V without base resistors! wilf...
That comment below referred to the two wire control option but the original three wire SH-Bridge can certainly be used at 2V without base resistors! wilf...
Hi Wilf, i just read your wonderful article about motor-drivers. I should have done this one week before :-) i tested and simulated nearly all kinds of...
Manfred Schaffran
Manfred.Schaffran@...
Jun 23, 2002 4:39 pm
Manfred, ... have done ... design before ... It's already in work... Conan ... Conan the Librarian (conan.librarian@...) Custodian of the BEAM...
... Hi, Manfred. Actually, the original Tilden article described a complete smoke-proof H-bridge with Forward - Reverse - Brake - Freewheel capability. He ...
... http://faq.solarbotics.net/ ... "Um, no - that's H,R,Y,N,K,I,W. No, not K,I,U,U, K,I,_W_. Yes, that's right. Yes, I know it looks like "HOCKYRINK." Yup,...
And more specifically: http://faq.solarbotics.net/BiomechMotorBridges.html. It's amazing how easy it is to browse the BEAM Tek site, everthing is just right ...
Note in my message http://groups.yahoo.com/group/beam/message/27042 I showed a simpler solution to adding a brake to the Tilden/139 h-bridge. I also confused...
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