Abstract: Techniques for power tunnels on circuit boards are disclosed. A power tunnel may be created in a circuit board by drilling through non-conductive layers to a conductive trace and then filling in the hole with a conductor. A power tunnel can have a high cross-sectional area and can carry a larger amount of current than an equivalent-width trace, reducing the area on a circuit board required to carry that amount of current.

Abstract: Embodiments herein relate to an electronic circuit with a first port for providing a first power signal and a second port for providing a second power signal. Each of the ports may be coupled with a respective system gate and charging gate. A system gate may selectively couple a port with a system load, while the charging gate may selectively couple a port with a battery. Other embodiments may be described and/or claimed.

Abstract: In an embodiment, a computing system for selecting a power mode may include: a system load, a battery, a power converter to receive external power and provide output power, and a processor to: monitor a charge level of the battery while the computing system is in a converter power mode, where the converter power mode comprises to power the system load and charge the battery from the output power of the power converter; and in response to a determination that the charge level of the battery is within a battery condition range, cause the computing system to switch from the converter power mode to a battery power mode, where the battery power mode comprises, during a connection of the power converter to the external power, to disconnect the battery from the power converter and power the system load from output power of the battery.

Abstract: Techniques for power tunnels on circuit boards are disclosed. A power tunnel may be created in a circuit board by drilling through non-conductive layers to a conductive trace and then filling in the hole with a conductor. A power tunnel can have a high cross-sectional area and can carry a larger amount of current than an equivalent-width trace, reducing the area on a circuit board required to carry that amount of current.