Circuit failure protection
AssigneeWestern Digital Technologies, Inc.
InventorAmit VIJAYVARGIYA
Life of this patent
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Abstract
Aspects of a storage device including a memory and a controller are provided. In certain aspects, the storage device may include a holdup circuit powered and controlled by the controller. In some examples, the holdup circuit may be configured to charge a first capacitor by closing a first switch coupled between the first capacitor and a boost converter during a first window of time. The holdup circuit may also be configured to charge a second capacitor by closing a second switch coupled between the second capacitor and the boost converter during a second window of time.
Claims20
A holdup circuit, comprising:
- a boost converter;
- a semiconductor device configured to output a first signal and a second signal;
- a first capacitor coupled to the boost converter via a first switch;
- and
- a second capacitor coupled to the boost converter via a second switch, wherein the first switch is controlled by the first signal, wherein the second switch is controlled by the second signal, and wherein the first signal is complementary to the second signal.
A method for providing auxiliary power to a circuit, comprising:
- charging a first capacitor of a holdup capacitor bank during a first window of time;
- and
- charging a second capacitor of the holdup capacitor bank during a second window of time, wherein the second window of time occurs after the first window of time.
An apparatus for providing auxiliary power to a circuit, comprising:
- means for charging a first capacitor of a holdup capacitor bank during a first window of time;
- and
- means for charging a second capacitor of the holdup capacitor bank during a second window of time, wherein the second window of time occurs after the first window of time.
Dependencies are inferred from the claim text.