Concerning the diode, the answer is YES, you can break an ESC or burn out a micro switch if it is backwards. The diode should be placed reverse biased across any solenoid or relay coil used. Its purpose is to absorb the BIG spike generated by the coil once its energizing voltage is turned off. The attached picture shows the diode and solenoid wired up. The line (+) end of the diode in the drawing is indicated on a component by the band at one end. The diode in the picture and the diode in the drawing are pointing in the same direction. A common diode series that works for everything I've wired for these models is 1N4001 thru 1N4004. Any of these diodes will work for solenoid and relay coil spike suppression. Bill
>________________________________ > From: Neil Rochford <[email protected]> >To: [email protected] >Sent: Tuesday, April 2, 2013 7:18 PM >Subject: Re: [TANKS] MAG esc`s in tanks > > >Ok , now I`ve goggled capacitor and done some considerable reading, I`ve un >blown my brain on the subject (after Mr Arundles complications) , so the only >question is how many farads of a capacitor would one require for a 12v / 100w >( ish ) pair of motors ? do they have a "way round" + and - ? >( I did buy a 10 pack of caps many years ago that Joe Summer told me about, >I`ll find and fit them ) > > > >Diodes, Im struggling with . Frank wrote - "relays/solenoids should always >have at least a diode placed across the coil leads (in reverse direction)" > > >my questions - >1, Are the "coil leads" the +&- wires ( v+ & gnd ) into the "relays/solenoid" ? > > >2 ,What size/type of diode ( there are many) for what size/type of coil ? >does it matter? > > >3 ,How does the reverse direction thing work ? is that zero resistance side >of the diode to the V+ wire on the relays/solenoid and Vice versa ? will >anything be damaged if it was connected the wrong way ? > > >I realize I know very little about electronics and to be honest it hurts my >head, so if Im just out of my depth , please just tell me so and I`ll give up. >but it would be nice to learn. >my leopard ( T051 ) often fired a shot via the actuator when the turret turned >at speed. I think the motor (that spat out sparks) triggered the actuator. id >like to be able to avoid this in the future. > > >Neil "Sorry to be a dummy" R > > -- >-- >You are currently subscribed to the "R/C Tank Combat" group. >To post a message, send email to [email protected] >To unsubscribe, send email to [email protected] >Visit the group at http://groups.google.com/group/rctankcombat > >--- >You received this message because you are subscribed to the Google Groups "R/C >Tank Combat" group. >To unsubscribe from this group and stop receiving emails from it, send an >email to [email protected]. >For more options, visit https://groups.google.com/groups/opt_out. > > > > > -- -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to [email protected] To unsubscribe, send email to [email protected] Visit the group at http://groups.google.com/group/rctankcombat --- You received this message because you are subscribed to the Google Groups "R/C Tank Combat" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
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