Patents by Inventor Rogelio L. Erbito
Rogelio L. Erbito has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7928709Abstract: A voltage regulator is provided. An input node receives an input voltage. An output node provides a supply voltage. A first transistor is coupled between the input node and a node. A first resistor is coupled between the input node and a gate of the first transistor. A second transistor is coupled between the node and the output node. An amplifier includes a non-inverting input terminal for receiving a reference voltage and an inverting input terminal. A second resistor is coupled between the inverting input terminal and a ground. A third transistor is coupled between the second resistor and a gate of the second transistor, wherein the third transistor is controlled by an output of the amplifier. A fourth transistor is coupled between the third transistor and the first node, wherein a gate of the fourth transistor is coupled to the gate of the second transistor.Type: GrantFiled: February 4, 2009Date of Patent: April 19, 2011Assignee: Vanguard International Semiconductor CorporationInventor: Rogelio L. Erbito, Jr.
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Patent number: 7872462Abstract: A bandgap reference circuit is provided. An input node receives a supply voltage. An output node provides a reference voltage. A first transistor is coupled between the input node and the output node and has a first control terminal. A resistor is coupled between the input node and the first control terminal. A second transistor is coupled to the first control terminal and has a second control terminal coupled to the output node. A third transistor is coupled between the second transistor and a ground terminal and has a third control terminal. A voltage dividing unit provides a first voltage and a second voltage according to the reference voltage. A differential amplifier provides a signal to the third control terminal according to a difference between the first and second voltages.Type: GrantFiled: October 27, 2008Date of Patent: January 18, 2011Assignee: Vanguard International Semiconductor CorporationInventor: Rogelio L. Erbito, Jr.
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Publication number: 20100195358Abstract: A voltage regulator is provided. An input node receives an input voltage. An output node provides a supply voltage. A first transistor is coupled between the input node and a node. A first resistor is coupled between the input node and a gate of the first transistor. A second transistor is coupled between the node and the output node. An amplifier includes a non-inverting input terminal for receiving a reference voltage and an inverting input terminal. A second resistor is coupled between the inverting input terminal and a ground. A third transistor is coupled between the second resistor and a gate of the second transistor, wherein the third transistor is controlled by an output of the amplifier. A fourth transistor is coupled between the third transistor and the first node, wherein a gate of the fourth transistor is coupled to the gate of the second transistor.Type: ApplicationFiled: February 4, 2009Publication date: August 5, 2010Applicant: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATIONInventor: Rogelio L. Erbito, JR.
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Patent number: 7737674Abstract: A voltage regulator. A pass element has a control gate and outputs an output voltage according to an input voltage and a control signal received from the control gate. A feedback circuit generates a feedback signal according to the output voltage. A bandgap circuit generates a reference voltage according to the output voltage. An amplifier generates a first signal according to the feedback signal and the reference voltage. A start-up circuit generates the control signal according to the reference voltage and the first signal.Type: GrantFiled: August 2, 2007Date of Patent: June 15, 2010Assignee: Vanguard International Semiconductor CorporationInventor: Rogelio L. Erbito, Jr.
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Publication number: 20100102794Abstract: A bandgap reference circuit is provided. An input node receives a supply voltage. An output node provides a reference voltage. A first transistor is coupled between the input node and the output node and has a first control terminal. A resistor is coupled between the input node and the first control terminal. A second transistor is coupled to the first control terminal and has a second control terminal coupled to the output node. A third transistor is coupled between the second transistor and a ground terminal and has a third control terminal. A voltage dividing unit provides a first voltage and a second voltage according to the reference voltage. A differential amplifier provides a signal to the third control terminal according to a difference between the first and second voltages.Type: ApplicationFiled: October 27, 2008Publication date: April 29, 2010Applicant: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATIONInventor: Rogelio L. Erbito, JR.
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Publication number: 20090033310Abstract: A voltage regulator. A pass element has a control gate and outputs an output voltage according to an input voltage and a control signal received from the control gate. A feedback circuit generates a feedback signal according to the output voltage. A bandgap circuit generates a reference voltage according to the output voltage. An amplifier generates a first signal according to the feedback signal and the reference voltage. A start-up circuit generates the control signal according to the reference voltage and the first signal.Type: ApplicationFiled: August 2, 2007Publication date: February 5, 2009Applicant: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATIONInventor: Rogelio L. Erbito, JR.
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Patent number: 7369419Abstract: A voltage converter comprises an input terminal receiving a DC input voltage, an output terminal outputting an output voltage, a first switch coupled between a first node and the input terminal, a second switch coupled between the input terminal and a second node, a first capacitor coupled between the first node and the second node, a third switch coupled between the second node and ground, a fourth switch coupled between a third node and ground, a first electrical device coupled between the third node and the input terminal, a load capacitor coupled between ground and the output terminal, a second electrical device coupled between the first node and the output terminal, a second capacitor coupled between the third node and a fourth node, a fifth switch coupled between the first node and the fourth node, and a sixth switch coupled between the second node and the fourth node.Type: GrantFiled: July 5, 2006Date of Patent: May 6, 2008Assignee: Vanguard International Semiconductor CorporationInventor: Rogelio L Erbito, Jr.
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Publication number: 20080007981Abstract: A voltage converter comprises an input terminal receiving a DC input voltage, an output terminal outputting an output voltage, a first switch coupled between a first node and the input terminal, a second switch coupled between the input terminal and a second node, a first capacitor coupled between the first node and the second node, a third switch coupled between the second node and ground, a fourth switch coupled between a third node and ground, a first electrical device coupled between the third node and the input terminal, a load capacitor coupled between ground and the output terminal, a second electrical device coupled between the first node and the output terminal, a second capacitor coupled between the third node and a fourth node, a fifth switch coupled between the first node and the fourth node, and a sixth switch coupled between the second node and the fourth node.Type: ApplicationFiled: July 5, 2006Publication date: January 10, 2008Inventor: Rogelio L. Erbito