View source for 17895587. POWER SUPPLY NOISE REDUCTION BY CURRENT CANCELLATION CIRCUIT simplified abstract (Apple Inc.)

=POWER SUPPLY NOISE REDUCTION BY CURRENT CANCELLATION CIRCUIT=


==Organization Name==

[[:Category:Apple Inc.|Apple Inc.]]


[[Category:Apple Inc.]]

==Inventor(s)==

[[:Category:Meei-Ling Chiang of Cupertino CA (US)|Meei-Ling Chiang of Cupertino CA (US)]][[Category:Meei-Ling Chiang of Cupertino CA (US)]]

[[:Category:Khaled M. Alashmouny of Sunnyvale CA (US)|Khaled M. Alashmouny of Sunnyvale CA (US)]][[Category:Khaled M. Alashmouny of Sunnyvale CA (US)]]

[[:Category:Zhi Hu of San Jose CA (US)|Zhi Hu of San Jose CA (US)]][[Category:Zhi Hu of San Jose CA (US)]]

==POWER SUPPLY NOISE REDUCTION BY CURRENT CANCELLATION CIRCUIT - A simplified explanation of the abstract==


This abstract first appeared for US patent application 17895587 titled 'POWER SUPPLY NOISE REDUCTION BY CURRENT CANCELLATION CIRCUIT

==Simplified Explanation==

The circuit described in the patent application includes a current source and a load circuit coupled to the current source. The current source generates a cancellation current with a certain rate of change, while the load circuit generates a load current with an inverse rate of change during the same time interval.

* The circuit includes a transistor connected to a voltage supply to generate the cancellation current.
* The load circuit is configured to generate the load current with an inverse rate of change compared to the cancellation current.
* A power management unit in a power system controls the current rate of change during the time interval.

---

### Potential Applications
* Power management systems
* Electronic devices with efficient power usage

### Problems Solved
* Efficient power generation and usage
* Minimizing power wastage

### Benefits
* Improved power efficiency
* Better control over power supply
* Reduced energy costs


==Original Abstract Submitted==

The present disclosure describes a circuit having a current source and a load circuit coupled to the current source. The current source can include a transistor electrically coupled to a voltage supply and can be configured to generate a first current with a first current rate-of-change during a time interval, where the first current can be a cancellation current. In addition, the load circuit can be configured to generate a second current with a second current rate-of-change during the same time interval, where the second current can be a load current. The second current rate-of-change can be substantially an inverse of the first current rate-of-change. A power system can include a power management unit configured to generate a power supply voltage at an output, a current source and a load circuit electrically coupled to the output, and a control circuit controls the first current rate-of-change during the time interval.



[[Category:H02M3/155]]
[[Category:H02M1/00]]