Greentime controllers

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ian.mich   10 kW

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Greentime controllers

Post by ian.mich » Jun 17 2012 4:18pm

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Re: Greentime controllers

Post by ian.mich » Jun 17 2012 5:40pm

and no i'm not a spammer

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Re: Greentime controllers

Post by boppinbob » Jun 17 2012 5:52pm

I hate to sound skeptical but something that sounds too good to be true usually is.
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Re: Greentime controllers

Post by ian.mich » Jun 17 2012 5:58pm

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Last edited by ian.mich on Jul 15 2012 8:23pm, edited 1 time in total.

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Re: Greentime controllers

Post by neptronix » Jun 17 2012 6:12pm

There are multiple threads about these controllers already.

http://endless-sphere.com/forums/viewto ... =greentime

Start reading and find out why everyone is not using them :)
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Re: Greentime controllers

Post by ian.mich » Jun 17 2012 7:44pm

neptronix wrote:There are multiple threads about these controllers already.

http://endless-sphere.com/forums/viewto ... =greentime

Start reading and find out why everyone is not using them :)
In that thread is everyone is praising the controllers, with the few people complaining about lack of programmability and lower quality assembly, which are pains that are alleviated by the fact that you can have leo customize it for any specs, and spending 10 mins soldering.

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Re: Greentime controllers

Post by neptronix » Jun 17 2012 7:51pm

What if you decide to use it on a different motor? or change the LVC? or that the 3 speed switch is set incorrectly? do you buy another?

The construction looks awfully poor. If that is a problem, we will find out in time.

If you are particular about having a system that runs perfectly, and want to tune your controller until it does, non-programmability is going to be a problem.

I for one, would be willing to look past the construction issues if these were programmable, being that they are at such a low cost.
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Re: Greentime controllers

Post by ian.mich » Jun 17 2012 8:07pm

neptronix wrote:What if you decide to use it on a different motor? or change the LVC? or that the 3 speed switch is set incorrectly? do you buy another?

The construction looks awfully poor. If that is a problem, we will find out in time.

If you are particular about having a system that runs perfectly, and want to tune your controller until it does, non-programmability is going to be a problem.

I for one, would be willing to look past the construction issues if these were programmable, being that they are at such a low cost.
Meh, leo's a good guy and they are indestructible. They do need their connectors repleced though. LVC is unnecessary but can be set via a simple resistor change, you can buy a voltage panel on ebay for $8, and the controllers are set up properly, 3 speed switch hasn't been a problem. Never recieved a dud and are always set up properly.
Last edited by ian.mich on Sep 11 2012 9:53pm, edited 1 time in total.

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Re: Greentime controllers

Post by ian.mich » Jun 18 2012 6:25pm

Greentime is legitimately the best ebike parts supplier in china

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Re: Greentime controllers

Post by SamTexas » Jun 18 2012 6:37pm

ian.mich wrote:http://www.aliexpress.com/fm-store/3138 ... -s-EV.html
Why aren't people emptying Greentime's inventory, they offer completely custom controllers at any voltage or current, choice of 4410s, 4110s, 4115s, regen, EABS, cruise, and best of all: sensor and sensorless support. They do all this for rock bottom prices. Why aren't these on every ebike? This "48V 1000W" controller does 100V 45A, and all the features I outlined for $45 with shipping. The crystalyte controllers that cost an arm and a leg don't have the same features as this.
That sounds really good. I just looked at the link but could not find the following supports: sensor and sensorless, 100V. Where do you find that info?
48V 1000W 45Amax BLDC motor controller

Feature:
1)Rated voltage: DC48V
2)Rated power: 1000W
3)Max current: 45Amax
4)Under-voltage protection: DC40-41.5V
5)Current limited: 45A±0.5A
6)Efficiency: ≥83%
7)Consumption: <1.5W
8)Controller category: Brushless direct current
9)Applicable model: electric bicycle,electric scooter,electric vehicle

Function:
1)Super low noise when start up
2)Speed limited/3-Speed
3)Under-voltage protection
4)Over-current protection
5)Cruising Control
6)Water proof
7)E-ABS/Hign Level Brake
8)Regen braking (recharging)

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Re: Greentime controllers

Post by DAND214 » Jun 18 2012 6:39pm

Price for the controller is fair but the shipping is insane.

No break on quanity controllers as the shipping is the same for each item. It's not the cost of the controller they are making money on it's the shipping!

Buy one and shipping is $30 buy 10 and it's $300.00 I never buy 1 from China as you never know if the first one is any good so always order extra. Not here shipping breaks don't apply. $43.00 buy 1 or 10.

Yeah the price is fair but the wait is too long if you need another.
No Thanks.

Dan

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Re: Greentime controllers

Post by SamTexas » Jun 18 2012 6:44pm

DAND214 wrote: Buy one and shipping is $30
What? It says $14.56 for shipping 1 unit to the US.
Price:
US $31.00 / piece
Bulk Price:
US $29.14 / piece (5 pieces or more)
Quantity:
piece
Shipping Cost:
US $14.56toUnited States Via China Post Air Mail
Processing Time:
Ships out within 1 days
Total Price:
US $45.56

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ian.mich   10 kW

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Re: Greentime controllers

Post by ian.mich » Jun 18 2012 8:58pm

SamTexas wrote:
ian.mich wrote:http://www.aliexpress.com/fm-store/3138 ... -s-EV.html
Why aren't people emptying Greentime's inventory, they offer completely custom controllers at any voltage or current, choice of 4410s, 4110s, 4115s, regen, EABS, cruise, and best of all: sensor and sensorless support. They do all this for rock bottom prices. Why aren't these on every ebike? This "48V 1000W" controller does 100V 45A, and all the features I outlined for $45 with shipping. The crystalyte controllers that cost an arm and a leg don't have the same features as this.
That sounds really good. I just looked at the link but could not find the following supports: sensor and sensorless, 100V. Where do you find that info?
48V 1000W 45Amax BLDC motor controller

Feature:
1)Rated voltage: DC48V
2)Rated power: 1000W
3)Max current: 45Amax
4)Under-voltage protection: DC40-41.5V
5)Current limited: 45A±0.5A
6)Efficiency: ≥83%
7)Consumption: <1.5W
8)Controller category: Brushless direct current
9)Applicable model: electric bicycle,electric scooter,electric vehicle

Function:
1)Super low noise when start up
2)Speed limited/3-Speed
3)Under-voltage protection
4)Over-current protection
5)Cruising Control
6)Water proof
7)E-ABS/Hign Level Brake
8)Regen braking (recharging)
I contacted Leo, and he said they had 100V capacitors, 4410 mosfets, and worked with or without hall sensors. he recomended not to go over 96v but they're fine for 24s lipo.

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Re: Greentime controllers

Post by SamTexas » Jun 18 2012 10:05pm

Thanks. So have you tried it in sensorless mode?

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Re: Greentime controllers

Post by XLR8 » Jun 18 2012 10:24pm

Has anyone enabled regen or EABS on one of Leo's controllers? I have the cruise and 3 speed features working but I haven't had any luck with EABS. These controllers are good value for money. I purchased a 60 volt 1500 watt controller for $42 delivered to the door, Australia. The motor runs just noticeably warm and the controller has no obvious heating at all on a normal ride around the streets with small hills.

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Re: Greentime controllers

Post by Gordo » Jun 18 2012 10:34pm

DAND214 wrote:Price for the controller is fair but the shipping is insane.

No break on quanity controllers as the shipping is the same for each item. It's not the cost of the controller they are making money on it's the shipping!

Buy one and shipping is $30 buy 10 and it's $300.00 I never buy 1 from China as you never know if the first one is any good so always order extra. Not here shipping breaks don't apply. $43.00 buy 1 or 10.

Yeah the price is fair but the wait is too long if you need another.
No Thanks.

Dan
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Re: Greentime controllers

Post by ian.mich » Jun 19 2012 8:45am

XLR8 wrote:Has anyone enabled regen or EABS on one of Leo's controllers? I have the cruise and 3 speed features working but I haven't had any luck with EABS. These controllers are good value for money. I purchased a 60 volt 1500 watt controller for $42 delivered to the door, Australia. The motor runs just noticeably warm and the controller has no obvious heating at all on a normal ride around the streets with small hills.
apparently you merely apply a voltage to the single yellow wire, which i believe can be achieved with a switch between the single purple wire (brake lever) have not tried yet but i am getting a shipment of another 5 today, along with a 36 fet 4410s (i know i know, should go for 41s but there's no point when all it will use is 100A, the 44s have proven their use) so i'll get down to some real testing.

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Re: Greentime controllers

Post by HypnoToad » Jun 19 2012 10:18am

ian.mich wrote:but they are real. i have next to me a 100v 45a controller that has regen, cruise, EABS, sensor and sensorless, and an X8M06 microprocessor. $43US including shipping (got it during a sale a few weeks ago)
How long did it take to arrive?

I'm after a 48v controller, and what are the benefits of these 4110 FETs in a 48v setup?

Thanks

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Re: Greentime controllers

Post by ian.mich » Jun 19 2012 10:33am

HypnoToad wrote:
ian.mich wrote:but they are real. i have next to me a 100v 45a controller that has regen, cruise, EABS, sensor and sensorless, and an X8M06 microprocessor. $43US including shipping (got it during a sale a few weeks ago)
How long did it take to arrive?

I'm after a 48v controller, and what are the benefits of these 4110 FETs in a 48v setup?

Thanks
not sure, probably around 3 weeks, they're 4410 not 4110. 4110 are the mexican fets that everyones is looking for and they will use them for these controllers if you ask, but they use 4410 from stock and it's all you really need for almost any ebike (4410 are the chinese ripoff of the 4110). unless you are doing some serious biking (crystalyte 5400 series or hubzilla) you don't need 4110s, 4410s take 100v and with 15 of them 45A is nothing. I highly recomend contact leo on skype (leo840522) and not through aliexpress. he can set you up with a custom controller with any LVC and ask for all the features customized to your specs
Speed limited/3-Speed
Under-voltage protection
Over-current protection
Cruising Control
E-ABS/High Level Brake
Regen braking (recharging)

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Re: Greentime controllers

Post by Jeremy Harris » Jun 19 2012 11:17am

ian.mich wrote: not sure, probably around 3 weeks, they're 4410 not 4110. 4110 are the mexican fets that everyones is looking for and they will use them for these controllers if you ask, but they use 4410 from stock and it's all you really need for almost any ebike (4410 are the chinese ripoff of the 4110). unless you are doing some serious biking (crystalyte 5400 series or hubzilla) you don't need 4110s, 4410s take 100v and with 15 of them 45A is nothing. I highly recomend contact leo on skype (leo840522) and not through aliexpress. he can set you up with a custom controller with any LVC and ask for all the features customized to your specs
Speed limited/3-Speed
Under-voltage protection
Over-current protection
Cruising Control
E-ABS/High Level Brake
Regen braking (recharging)
The IRFB4410 is a different FET from the IRFB4110 and is not "a chinese ripoff of the 4110". Both are IR parts (see : http://www.irf.com/product-info/datashe ... fs4410.pdf and http://www.irf.com/product-info/datashe ... 110pbf.pdf and compare the specs), both are widely counterfeited in China. More often than not the counterfeit parts are way off spec. Note the IR rated Rdson for the IRFB4410, 10 mohms!!! You can bet that the Chinese copies will be higher than that. Even if they aren't, then good IR manufactured IRFB4410s will have around 2.2 times the losses that an IRFB4110 would have, meaning they'll run around 2.2 times hotter and reach the thermal conductivity limit to the case much quicker, meaning a higher risk of failure.
Please ask questions on the forum, rather than by PM, as it helps others and you'll get a better range of answers.

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Re: Greentime controllers

Post by ian.mich » Jun 19 2012 11:54am

Jeremy Harris wrote:
ian.mich wrote: not sure, probably around 3 weeks, they're 4410 not 4110. 4110 are the mexican fets that everyones is looking for and they will use them for these controllers if you ask, but they use 4410 from stock and it's all you really need for almost any ebike (4410 are the chinese ripoff of the 4110). unless you are doing some serious biking (crystalyte 5400 series or hubzilla) you don't need 4110s, 4410s take 100v and with 15 of them 45A is nothing. I highly recomend contact leo on skype (leo840522) and not through aliexpress. he can set you up with a custom controller with any LVC and ask for all the features customized to your specs
Speed limited/3-Speed
Under-voltage protection
Over-current protection
Cruising Control
E-ABS/High Level Brake
Regen braking (recharging)
The IRFB4410 is a different FET from the IRFB4110 and is not "a chinese ripoff of the 4110". Both are IR parts (see : http://www.irf.com/product-info/datashe ... fs4410.pdf and http://www.irf.com/product-info/datashe ... 110pbf.pdf and compare the specs), both are widely counterfeited in China. More often than not the counterfeit parts are way off spec. Note the IR rated Rdson for the IRFB4410, 10 mohms!!! You can bet that the Chinese copies will be higher than that. Even if they aren't, then good IR manufactured IRFB4410s will have around 2.2 times the losses that an IRFB4110 would have, meaning they'll run around 2.2 times hotter and reach the thermal conductivity limit to the case much quicker, meaning a higher risk of failure.
Fair enough, but these have been certified genuine 4410s by a local EE and other sources, and it's cranking 45A through 15 of them, i doubt there would be any problems

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Re: Greentime controllers

Post by Jeremy Harris » Jun 19 2012 12:03pm

ian.mich wrote:
Fair enough, but these have been certified genuine 4410s by a local EE and other sources, and it's cranking 45A through 15 of them, i doubt there would be any problems
There are still a very poor FET, even if genuine IR parts, with a high Rdson and so high losses and consequent risk of failure from over heating. An IRFB4110 has an Rdson of 4.5 mohm max, compared to the IRFB4410 figure of 10 mohm. That means, in simple terms, that one IRFB4110 = more than two IRFB4410s in parallel. In even simpler terms it means a 15 FET controller fitted with IRFB4410s is no better than a 6 FET controller fitted with IRFB4110s in terms of current handling capability (in fact it'd be worse than the 6 FET, as the 15 FET controller would have a higher total gate charge so would have slower switching times and hence greater switching losses, too).
Please ask questions on the forum, rather than by PM, as it helps others and you'll get a better range of answers.

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Re: Greentime controllers

Post by liveforphysics » Jun 19 2012 12:28pm

I would rather have a 6-fet made with 3077's for that voltage range of controller than a 15-fet made from 4410's, which you need twice as many of to equal a 4110.
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Re: Greentime controllers

Post by ian.mich » Jun 19 2012 12:31pm

Still, it's $45 and you can get 4110s if you need. this controller handles 24s lipo no problem

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Re: Greentime controllers

Post by Jeremy Harris » Jun 19 2012 12:49pm

liveforphysics wrote:I would rather have a 6-fet made with 3077's for that voltage range of controller than a 15-fet made from 4410's, which you need twice as many of to equal a 4110.
Pretty much an unbeatable combination for a small controller at this spec point, in my view. Bare board 6 FETs from Keywin are ~ $20 each, add in 6 IRFB3077s at around $25 and you have a 65V + capable controller at 50 A + with very low losses.
Please ask questions on the forum, rather than by PM, as it helps others and you'll get a better range of answers.

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