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867
2014-08-08 12:46:43.04
We would like to use ON's NCP1034 in a constant output voltage DC-DC converter. The limitation is the hiccup protection mode that, when we turn lamps on in the output, the hiccup works due to lamps' inrush current.
Is there any imaginative way to implement a foldback protection mode to a 13V 20A output, or limit the output current at 20A, even decreasing de output voltage?
Best regards
1617
2013-07-04 02:44:36.617
It is said that NCP1294 is voltage mode controller. But I understood that NCP1294 can also be operated in current mode. According to the reference design "DN06054/D - Reference Design for Solar Power MPPT Controller" and application note: 'AND8490/D', it is being operated in current mode. My question is, when the controller is operating in current mode cotrol, don't we have to do the solpe compensation? And is it true that, NCP1294 can be operated in both voltage mode as well as current mode controller?
1600
2013-03-15 09:48:24.146
A better circuit is needed for AND8490/D Schematic 1Z, could you please make it available. Thank you.
2024
2011-07-25 14:40:03.0
Dc to Ac: Application -converting 120 volts dc into AC for Solar application If he took 10 batteries at 12 volts each it would equal 120 volts dc. Is there a semiconductor that can take 120 volts DC and oscillate at 120 volts AC/signwave.
2750
2011-06-15 17:52:38.0
I am trying to help my daughter with a circuit design for a solar panel battery charger. We need to have a signal that the battery is undercharged. It appears to me that your MC34164 will do this. I am using datasheet MC34164/D November 2001 - Rev. 3 to review the product. I am an engineer but not an electronic engineer, so I have several ;stupid; questions. 1) It appears that if pin 2 of an MC34164-5 is connected to the positive terminal of the battery, and pin 3 is connected to common ground, pin 1 will go to ground when the battery voltage drops to about 4.25V, and it will sink up to about 6mA. Is that correct? I hope so, because that would be great! 2) Figure 15 of the data shows a Voltage Monitor. Does the LED light when the battery is low, or when the battery is high? I think low, but please advise. 3) Please explain how the Solar Powered Battery Charger of Fig. 16 operates. When the battery is low, I presume it turns off the transistor so the current from the solar panel goes to the battery. Is that correct? Also, it appears that the MC34164 prevents overcharging the battery. Is that correct? Do you adjust the overcharge value by changing the external resistor value? If so, approximately what value resistor should be used?
1970
2011-06-15 17:51:48.0