I'm searching for a new controller to replace my current "48V 1000W 22±1A" controller by DMHC but I am having a hard time wrapping my head around the power and amp ratings of different controllers... I know that P=U*I so it made sense to me that my current controller would be a 1000W unit since 48 volts times 22 amps max would equal 1056 watts peak power.
But looking at, for example, these two controllers from RisunMotor just makes me confused:
https://risunmotor.com/24v-36v-48v-...less-dc-controller-regenerative-function.html
https://risunmotor.com/24v-500w-36v...usoidal-controller-regenerative-function.html
The first controller is physically a lot smaller and it is rated for 750W at 48V but with 25±1A max current. Now that 25±1A max current is a lot more than my DMHC controller has but this RisunMotor controller is still only rated for 750W. Shouldn't it be 1200W with that kind of current at 48 volts? And the second controller is physically a lot larger with 3 more mosfets but it can handle only 1 amp max more than the smaller one while being rated 250W higher at 48V. I'm sure there's something I've completely misunderstood so please enlighten me
But looking at, for example, these two controllers from RisunMotor just makes me confused:
https://risunmotor.com/24v-36v-48v-...less-dc-controller-regenerative-function.html
https://risunmotor.com/24v-500w-36v...usoidal-controller-regenerative-function.html
The first controller is physically a lot smaller and it is rated for 750W at 48V but with 25±1A max current. Now that 25±1A max current is a lot more than my DMHC controller has but this RisunMotor controller is still only rated for 750W. Shouldn't it be 1200W with that kind of current at 48 volts? And the second controller is physically a lot larger with 3 more mosfets but it can handle only 1 amp max more than the smaller one while being rated 250W higher at 48V. I'm sure there's something I've completely misunderstood so please enlighten me