Chipone Technology (beijing) Co., Ltd.

Ning Jin

This application describes example voltage regulating apparatuses, chips, power supplies, and electronic devices. In one example, an apparatus includes: a voltage input interface (), which is used to receive an input voltage; a current determination component (), which is electrically connected to the voltage input interface () and is used for determining a regulating current according to the input voltage and the amount of change between the input voltage and an adjacent input voltage of a previous moment; a controller (), which is electrically connected to the current determination component () and is used to output a control signal according to the regulating current; and a voltage output interface (), which is electrically connected to the voltage input interface (), the current determination component () and the controller () and is used to output a target voltage according to the control signal and the input voltage.

Voltage regulating apparatus, chip, power supply and electronic device

A voltage adjustment apparatus, a chip, a power source, and an electronic device. The apparatus comprises: a voltage input module, used for receiving an input voltage; a current determining module, electrically connected to the voltage input module and used for determining an adjustment current on the basis of the input voltage and a load current; a control module, electrically connected to the current determining module and used for outputting a control signal on the basis of the adjustment current; and a voltage output module, electrically connected to the voltage input module, the current determining module, and the control module, and being used for outputting a target voltage on the basis of the control signal and the input voltage.

Voltage adjustment apparatus, chip, power source, and electronic device

Disclosed is a low dropout linear regulator and a voltage stabilizing method therefor in embodiments. The low dropout linear regulator includes: a drive circuit, generating a first control signal according to a voltage reference and a feedback voltage and generating an output current according to the first control signal, a load capacitor providing an output voltage according to the output current; a voltage feedback circuit, obtaining the feedback voltage according to the output voltage; a current feedback circuit, generating a second control signal according to the output current; a switch circuit, providing the voltage reference according to the second control signal. Among them, in a first phase of a startup process, the voltage reference is less than or equal to an initial value, and the current feedback circuit limits the output current according to the second control signal; in a second phase of the startup process, the switch circuit switches a voltage value of the voltage reference to a target value. The low dropout linear regulator and the voltage stabilizing method therefor of the embodiment of the disclosure, during the startup process, may effectively limit the output current and make the output voltage rise gently so as to reduce or avoid overshoot.

Growing community of inventors

Beijing, China

Ning Jin