초록

In a power supply of a patient care system, a power management system monitors the temperature of an off-line switcher and adjusts the amount of current supplied by the off-line switcher to operate the off-line switcher within a range of temperature and power limits.

대표청구항 ▼

1. A power supply for a patient care system, comprising:an off-line switcher having an external power input and an internal power output; a first temperature sensor outputting a first signal representative of a first sensed temperature adjacent the off-line switcher; a voltage sensor outputting a se

1. A power supply for a patient care system, comprising:an off-line switcher having an external power input and an internal power output; a first temperature sensor outputting a first signal representative of a first sensed temperature adjacent the off-line switcher; a voltage sensor outputting a second signal VS representative of a sensed output voltage of the off-line switcher; a current sensor outputting a third signal IS representative of a sensed output current of the off-line switcher; a battery; a battery charger communicating with the off-line switcher and the battery to charge the battery at a charge rate; a memory storing a power management procedure; and processor means communicating with said sensors for varying the charge rate to the battery in accordance with the power management procedure in response to said first, second and third signals.