I am making an external portable "powerbank" for camera (rated @ 9V, 18W) using
1. DC coupler - http://www.ebay.com/itm/302072143563
2. 11.1V 3S2P Li-ion cells - extracted from a new laptop battery module
3. Battery protection board with balance control - http://www.ebay.com/itm/262714444457
4a. Buck converter with LM2596 - http://www.ebay.com/itm/221920170517
4b. Buck converter with MP1584EN (preferred option, since it is much smaller) - http://www.ebay.com/itm/122054336107
Datasheet: MP1584EN, LM2596
My questions are:
1. Are those buck converters reliable to output smooth constant voltage without any unexpected voltage spike?
2. Which voltage regulator is better in terms of stability and reliability?
3. Is there any overvoltage protection can be done?
4. Is there anything that I need to be careful about? since I am dealing with expensive camera
Thanks.
Leo
1. DC coupler - http://www.ebay.com/itm/302072143563
2. 11.1V 3S2P Li-ion cells - extracted from a new laptop battery module
3. Battery protection board with balance control - http://www.ebay.com/itm/262714444457
4a. Buck converter with LM2596 - http://www.ebay.com/itm/221920170517
4b. Buck converter with MP1584EN (preferred option, since it is much smaller) - http://www.ebay.com/itm/122054336107
Datasheet: MP1584EN, LM2596
My questions are:
1. Are those buck converters reliable to output smooth constant voltage without any unexpected voltage spike?
2. Which voltage regulator is better in terms of stability and reliability?
3. Is there any overvoltage protection can be done?
4. Is there anything that I need to be careful about? since I am dealing with expensive camera
Thanks.
Leo