Power control IC and recording device having power control IC
The power control IC addresses the issue of continuous power consumption in off-state devices by controlling power generation and supply, allowing for a power-saving off state, thereby reducing overall power usage.
JP2026121561APending Publication Date: 2026-07-24CANON KK
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Patent Information
- Application Number
- JP2026086525
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2026-05-22
- Publication Date
- 2026-07-24
AI Technical Summary
Technical Problem
Existing power control circuits in electronic devices, such as printers, continue to consume power from a sub-power supply even when the device is in an off state, leading to increased power consumption.
Method used
A power control IC that includes a DC-DC converter, storage unit, and detection unit to control power generation based on input signals, allowing the device to enter a power-saving off state by stopping power supply to unnecessary components.
Benefits of technology
Reduces power consumption by enabling the device to maintain a low-power standby state without continuous power supply to the main control unit, thus achieving significant power savings.
✦ Generated by Eureka AI based on patent content.
Abstract
Conventionally, because the power supply circuit was controlled by the mode control circuit, it was necessary to continuously supply power to the mode control circuit from the sub-power supply in order to detect when the power key was pressed while the device itself was off. [Solution] The power control IC includes a power supply unit including a DC-DC converter that generates power to be supplied to the main control unit based on an input power supply from an external power source, a storage unit that stores an output setting indicating whether or not to output power from the power supply unit to the main control unit, a detection unit that detects the input of a transition signal that changes the power supply state, and a control unit that, when the input of the transition signal is detected by the detection unit, controls the start or stop of power generation from the power supply unit based on the output setting stored in the storage unit, the main control unit is provided outside the power control IC and operates based on the power output from the power supply unit.
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