Hi,
Help would be appreciated with this circuit... I need to be able to current limit the output in a very simple way so that it fulfills these criteria:
- only a few components used
- current limiting need not be very precise (+/- 50 mA),
- it is a solution that has a very low power consumption
- the short-term output voltage remains stable (+/- 15 mV, long term variations of +/- 50 mV acceptable) at an output current of max. 1.5 A.
Please also note that I do not use the LT1082 device but instead the LM2585. Its datasheet can be found here: **broken link removed**
For this reason the Vc pin is called Comp on the LM2585 IC. Other pins are identical as far as I can see.
In practice I have also made it into an adjustable boost converter meaning that the output voltage can be adjusted from ~23 volts to 63 volts DC with a 50k potmeter. It should still be possible to adjust the voltage when the current limiting is in place.
Suggestions are appreciated.
Greetings,
Jesper
Help would be appreciated with this circuit... I need to be able to current limit the output in a very simple way so that it fulfills these criteria:
- only a few components used
- current limiting need not be very precise (+/- 50 mA),
- it is a solution that has a very low power consumption
- the short-term output voltage remains stable (+/- 15 mV, long term variations of +/- 50 mV acceptable) at an output current of max. 1.5 A.
Please also note that I do not use the LT1082 device but instead the LM2585. Its datasheet can be found here: **broken link removed**
For this reason the Vc pin is called Comp on the LM2585 IC. Other pins are identical as far as I can see.
In practice I have also made it into an adjustable boost converter meaning that the output voltage can be adjusted from ~23 volts to 63 volts DC with a 50k potmeter. It should still be possible to adjust the voltage when the current limiting is in place.
Suggestions are appreciated.
Greetings,
Jesper
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