It’s a precision current source. The series connection subtracts an internal 1.24-V precision reference from the external voltage input on the CATHODE pin. The internal op-amp subtracts the voltage ...

A cold cathode is a cathode in a gas-filled electron tube that is not heated by a filament. The voltage potential within the tube is sufficient to ionize the gas and cause the current to flow.

Now, a new study shows The Dincă Group at Princeton has developed a high-energy sodium-ion cathode that shows promise to potentially outperform many lithium-ion counterparts. Their cathode ...