Team Bitza

[PJ-27]

Re: Team Bitza

What's the catch?
http://www.ebay.co.uk/itm/Solid-State-R ... 35bb7a92d5

I stupidly blew the nice (albeit fragile!) Jaycar SSR we use for weapon control (reverse polarity, d'oh!) but at a 3rd the price what am I missing?

[RogueTwoRobots]

Re: Team Bitza

Output voltage: AC 24-380V
Output current: 100A
Input voltage: DC 3-32V
Control Method: DC to AC

That's your catch :wink:
Whether it has the potential to work like a Jaycar SSR I don't know (depends on the internal make-up). I'm not so clued up on cross compatibility with things like this.

[PJ-27]

Re: Team Bitza

Doesn't the jaycar one say a similar thing? I'll have to dig out my blown one. I figured the load side was just a big switch AC or DC?

[RogueTwoRobots]

Re: Team Bitza

From the Jaycar website:
http://www.jaycarelectronics.co.uk/prod ... ?ID=sy4086

Output Circuit
€ Load Voltage: 0-30VDC
€ Load Current: 0.02-100A
€ Max On-State Resistance: 0.007Ohms
€ Max On-State Voltage Drop: 0.35V
€ Max Turn On Time: 0.5ms
€ Max Turn Off Time: 0.5ms
€ Max Surge Current: 240A (10ms)

Input Circuit
€ Control Voltage: 3-32VDC
€ Control Current: 28mA max.
€ Min Turn Off Voltage: 1.0VDC
€ Input Resistance: 1.2kOhm

Doesn't appear to be any mention of AC here, but again, I'm not sure if they can be used for both.

[PJ-27]

Re: Team Bitza

It appears Jaycar do 2, one with a VAC output and one with a VDC.

Searching SSR on eBay and omitting VAC brought up some results, although finding a DC one (that actually is!) with a decent amp rating (80s +) is porving impossible let alone a good price.

This is the best I could do:
http://www.ebay.co.uk/itm/SSR-60DD-DC-t ... 20cd90f6c6

60a

And 80a at a premium:
http://www.ebay.co.uk/itm/Solid-State-R ... 230ffeaafb

[Anttazz]

Re: Team Bitza

PJ, I have another of the ones I sold you a while back, would you be interested in that? I don't have anymore spare so don't immediately blow it up this time

[PJ-27]

Re: Team Bitza

Hey Tony, that would be great! I'll try and make this one last longer!

[PJ-27]

Re: Team Bitza

I need to regulate the 24v in Bitza down to 12 for some cooling fans what's the best way to do this?

Most BECs regulate to 6-8v, or boosters increase voltage. Anyone know of a solution?

I doubt the current draw would be much so resistors could be a possibility?

Found this:
http://www.blackfiveservices.co.uk/fans ... &Target=12

[craig_colliass]

Re: Team Bitza

http://www.technobotsonline.com/hv-s...regulator.html

Would this do?

[PJ-27]

Re: Team Bitza

Bit pricey but thanks for the link.

Given the low current draw of the fan I'm hoping a resistor will do but without knowing the exact amperage I can't calculate which resistor. Time to experiment!

[shakesc]

Re: Team Bitza

Stuff on ebay cheap

http://www.ebay.co.uk/itm/NEW-DC-DC-Adj ... 43b01c45c5

http://www.ebay.co.uk/itm/New-LM2596-DC ... 231ed973f5

[maddox10]

Re: Team Bitza

I need to regulate the 24v in Bitza down to 12 for some cooling fans what's the best way to do this?

Putting 2 the same fans in series is the most easy way to do it.

[grant_ploughbot]

Re: Team Bitza

As mario say's either 2 fans in series, or just put a resistor on. Those Jaycar SSR's are the cheapest I ever found - although fragile they don't seem alot different to the £80 ones we got from RS years back.

[PJ-27]

Re: Team Bitza

Good find Chris!

That's a good point Mario but I've really only a need for one fan, worth bearing in mind though.

[razerdave]

Re: Team Bitza

How big a fan do you need? I have a brand new 24v fan for my victors which I don't need (seem to run fine without them) if you'd prefer to run it off battery voltage.