17485022. Decoupling Device Using Stored Charge Reverse Recovery simplified abstract (Apple Inc.)
Decoupling Device Using Stored Charge Reverse Recovery
Organization Name
Inventor(s)
Chi Nung Ni of Foster City CA (US)
Sanjay Dabral of Cupertino CA (US)
Decoupling Device Using Stored Charge Reverse Recovery - A simplified explanation of the abstract
This abstract first appeared for US patent application 17485022 titled 'Decoupling Device Using Stored Charge Reverse Recovery
Simplified Explanation
Increases in current drawn from power supply nodes in a computer system can cause voltage drops until power supply circuits can compensate. To address this issue, a decoupling circuit with a diode is proposed.
- The decoupling circuit includes a diode that can store charge during a charge mode.
- During a boost mode, the diode can be coupled to the power supply node.
- When the voltage level of the power supply node drops, the diode can source a current to the power supply node using the stored charge.
- The diode can be directly coupled to the power supply node or part of a switch-based system with multiple diodes to increase discharge voltage.
Potential Applications
- Computer systems and electronic devices with power supply nodes that experience voltage drops due to increased load currents.
- Any application where maintaining stable voltage levels in power supply nodes is critical.
Problems Solved
- Unwanted drops in power supply node voltages due to increased load currents.
- Compensating for increased load currents in power supply circuits.
Benefits
- Helps maintain stable voltage levels in power supply nodes.
- Reduces the impact of increased load currents on power supply node voltages.
- Can be implemented in various computer systems and electronic devices.
Original Abstract Submitted
Increases in current drawn from power supply nodes in a computer system can result in unwanted drops in the voltages of the power supply nodes until power supply circuits can compensate for the increased load. To lessen the effects of increases in load currents, a decoupling circuit that includes a diode may be coupled to the power supply node. During a charge mode, a control circuit applies a current to the diode to store charge in the diode. During a boost mode, the control circuit can couple the diode to the power supply node. When the voltage level of the power supply node begins to drop, the diode can source a current to the power supply node using the previously stored charge. The diode may be directly coupled to the power supply node or be part of a switch-based system that employs multiple diodes to increase the discharge voltage.
