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i2t [2020/07/23 21:40]
bbaig [Tips & Examples]
i2t [2020/07/23 21:41] (current)
bbaig [Tips & Examples]
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   * The standby current gets added to the load current. On a 30A board that's negligible, but on a ±5A board with a low limit that can be significant. As you can see, adding 100mA to the 1.5A load will make the protection trip after 37s instead of infinity.   * The standby current gets added to the load current. On a 30A board that's negligible, but on a ±5A board with a low limit that can be significant. As you can see, adding 100mA to the 1.5A load will make the protection trip after 37s instead of infinity.
   * Why does my board turn off with 1A for 900ms and 5A for 100ms? 1²*0.9 + 5²*0.1 = 0.9 + 2.5 = 3.4, sqrt(3.4) = 1.84A DC. Just the pulse is equivalent to 1.58A DC, enough to kill it.   * Why does my board turn off with 1A for 900ms and 5A for 100ms? 1²*0.9 + 5²*0.1 = 0.9 + 2.5 = 3.4, sqrt(3.4) = 1.84A DC. Just the pulse is equivalent to 1.58A DC, enough to kill it.
-  * How long do I need to wait between 5A 500ms pulses (assuming 0A the rest of the time)? 25*0.5 = 12.5, and our limit is 1.5. 1.5/12.5 = 12% duty cycle, so you need to wait at least 4.17s (0.5s/.12) before the next pulse.+  * How long do I need to wait between 5A 500ms pulses (assuming 0A the rest of the time)? 25*0.5 = 12.5, and our limit is 1.5. 1.5/12.5 = 12% duty cycle, so you need to wait at least 4.17s (0.5s/0.12) before the next pulse.
  
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i2t.txt · Last modified: 2020/07/23 21:41 by bbaig