Power control circuits
AssigneeAvery Dennison Corporation
InventorRobert B. Schulte
Life of this patent
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Abstract
Power control systems and methods are provided to control when and how power is removed from devices. A power control system includes a sensing module that detects an output voltage level of a battery pack. A shutoff module initiates a shutoff routine when the output voltage level decreases to a device shutoff voltage level. The device shutoff voltage level is greater than the battery pack shutoff voltage level. A bypass module prevents the initiation of the shutoff routine when the device performs one or more operations that are known to cause high battery current spikes that will resultant in significant voltage drops from the battery pack.
Claims21
A power control system that controls the delivery of electrical power to a printer apparatus, the system comprising:
- a sensing module that detects an output voltage level of a battery pack, wherein the battery pack is configured to shut off the delivery of electrical power therefrom entirely when the output voltage level of the battery pack reaches a battery pack shutoff voltage level;
- a shutoff module coupled to the sensing module and configured to initiate a shutoff routine for the device when the output voltage level of the battery pack decreases to a printer apparatus shutoff voltage level, wherein the printer apparatus shutoff voltage level is greater than the battery pack shutoff voltage level;
- and
- a bypass module that prevents the initiation of the shutoff routine when the printer apparatus performs one or more operations that are known to cause high battery current spikes.
A printing apparatus for printing on labels releasably adhered to a carrier web, the printing apparatus comprising:
- a print head;
- and
- a power supply module that includes:
- a sensing module that detects an output voltage level of a battery pack, wherein the battery pack is configured to shut off the delivery of electrical power therefrom entirely when the output voltage level of the battery pack reaches a battery pack shutoff voltage level;
- a shutoff module coupled to the sensing module and configured to initiate a shutoff routine when the output voltage level of the battery pack decreases to a printing apparatus shutoff voltage, wherein the printing apparatus shutoff voltage level is greater than the battery pack shutoff voltage level;
- and
- a bypass module that prevents the initiation of the shutoff routine when the printing apparatus performs one or more operations that are known to cause high battery current spikes.
Dependencies are inferred from the claim text.