17947472. Low-Dropout Regulator Circuit with Dynamic Transition Between Operation Modes simplified abstract (Apple Inc.)

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Low-Dropout Regulator Circuit with Dynamic Transition Between Operation Modes

Organization Name

Apple Inc.

Inventor(s)

Gaurav Sharma of Cupertino CA (US)

Nathan F. Hanagami of Cupertino CA (US)

Mahir Uka of Nabern (DE)

Benedikt Wolf of Nabern (DE)

Low-Dropout Regulator Circuit with Dynamic Transition Between Operation Modes - A simplified explanation of the abstract

This abstract first appeared for US patent application 17947472 titled 'Low-Dropout Regulator Circuit with Dynamic Transition Between Operation Modes

Simplified Explanation

The abstract describes a low-dropout (LDO) regulator circuit that can dynamically transition between two operation modes based on a switch mode enable signal. In the first mode, the output voltage depends on a reference voltage, while in the second mode, the output voltage is independent of the reference voltage.

  • The LDO regulator circuit includes an operational amplifier, a feedback circuit, and a pass transistor controlled by switches.
  • The circuit transitions between operation modes based on changes in the switch mode enable signal.
  • In the first mode, the output voltage is determined by the reference voltage, while in the second mode, the output voltage is independent of the reference voltage.

Potential Applications

This technology could be applied in various electronic devices requiring stable voltage regulation, such as mobile phones, laptops, and IoT devices.

Problems Solved

1. Provides dynamic transitioning between operation modes for efficient voltage regulation. 2. Ensures stable output voltage independent of reference voltage changes.

Benefits

1. Improved efficiency in voltage regulation. 2. Enhanced stability in output voltage. 3. Flexibility in operation modes for different requirements.

Potential Commercial Applications

"Dynamic Transitioning LDO Regulator Circuit for Efficient Voltage Regulation" could find applications in the consumer electronics industry, particularly in portable devices where power efficiency is crucial.

Possible Prior Art

One possible prior art could be traditional LDO regulator circuits that do not have the capability to dynamically transition between operation modes based on a switch mode enable signal.

Unanswered Questions

How does the dynamic transitioning between operation modes impact overall power consumption of the circuit?

The article does not provide specific details on how the dynamic transitioning affects the power consumption of the LDO regulator circuit.

What are the specific criteria for determining when to transition between the first and second operation modes?

The article does not elaborate on the specific conditions or criteria that trigger the transition between the two operation modes in the LDO regulator circuit.


Original Abstract Submitted

A low-dropout (LDO) regulator circuit with dynamic transitioning between first and second operation modes. The LDO regulator circuit includes an operational amplifier with a first input connected to a reference voltage, a feedback circuit connected between a second input of the operational amplifier and an output of the LDO regulator circuit, and a pass transistor selectively coupled to the feedback circuit and an output of the operational amplifier via a set switches controlled by a switch mode enable signal. The LDO regulator circuit transitions between the first and second operation modes responsive to one or more changes of the switch mode enable signal. In the first operation mode, a load voltage at the output of the LDO regulator circuit has a first voltage value that depends on the reference voltage. In the second operation mode, the load voltage has a second voltage value independent from the reference voltage.