Switching regulator, electronic device, and electronic circuit
AssigneeFujitsu Ten Limited
InventorsRyoh Izumoto, Kiyoshi Koyama
Life of this patent
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Abstract
There is provided a switching regulator configured to convert an input voltage into an output voltage. A control unit is configured to perform switching control in response to a result of comparison between a reference voltage and a complex voltage which includes a feedback voltage acquired by feeding back the output voltage, and a derived voltage derived on the basis of an input current.
Claims19
A switching regulator configured to convert an input voltage into an output voltage, the switching regulator comprising:
- a control unit configured to perform switching control in response to a result of comparison between a reference voltage and a complex voltage which includes a feedback voltage acquired by feeding back the output voltage, and a derived voltage derived on the basis of an input current;
- and
- an adding unit configured to add currents,
- wherein the adding unit adds a feedback current acquired by converting the feedback voltage, and the input current including an AC component and a DC component, to derive the complex voltage.
A switching regulator configured to convert am input voltage into an output voltage, the switching regulator comprising:
- a control unit configured to perform switching control in response to a result of comparison between a reference voltage and a complex voltage which includes a feedback voltage acquired by feeding back the output voltage, and a derived voltage derived on the basis of an input current;
- a changing unit configured to change the reference voltage in response to the current value of the input current;
- and
- a filter unit configured to pass therethrough the DC component of the input current,
- wherein the changing unit increases the reference voltage in response to an increase in the DC component of the input current, and
- wherein the changing unit converts the DC component of the input current output from the filter unit into a voltage, and adds the voltage to the reference voltage.
A switching regulator configured to convert and input voltage into an output voltage, the switching regulator comprising:
- a control unit configured to perform switching control in response to a result of comparison between a reference voltage and a complex voltage which includes a feedback voltage acquired by feeding back the output voltage, and a derived voltage derived on the basis of an input current;
- a setting unit configured to set the reference voltage in response to a peak value of the input current, and
- a supplying unit configured to supply a slope current whose current value increases and then decreases with time, to the complex voltage,
- wherein the setting unit sets the reference voltage in response to a peak value of the input current and a peak value of the slope current.
An electronic circuit configured to convert an input voltage into an output voltage, the electronic circuit comprising:
- a control unit configured to perform switching control in response to a result of comparison between a reference voltage and a complex voltage which includes a feedback voltage acquired by feeding back the output voltage, and a derived voltage derived on the basis of an input and
- an adding unit configured to add currents
- wherein the adding unit adds a feedback current acquired by converting the feedback voltage, and the input current including an AC component and a DC component to derive the complex voltage.
Dependencies are inferred from the claim text.