Constant voltage circuit with drooping and foldback overcurrent protection
The constant voltage includes a sense transistor through which a sense current flows based on an output current flowing through an output transistor; a current division circuit for dividing the sense current and outputting divided currents; a first current to voltage conversion circuit for convertin...
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| Main Author | |
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| Format | Patent |
| Language | English |
| Published |
29.03.2016
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| Subjects | |
| Online Access | Get full text |
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| Abstract | The constant voltage includes a sense transistor through which a sense current flows based on an output current flowing through an output transistor; a current division circuit for dividing the sense current and outputting divided currents; a first current to voltage conversion circuit for converting a first division current output from the current division circuit to a first voltage; a second current voltage conversion circuit for converting a second division current output from the current division circuit to a second voltage; an output voltage detection circuit for controlling the current division circuit such that a drain voltage of the sense transistor becomes equal to a voltage of the output terminal; and an overcurrent protection circuit for controlling the output voltage and the output current by detecting an overcurrent flowing through the output transistor based on the first voltage. |
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| AbstractList | The constant voltage includes a sense transistor through which a sense current flows based on an output current flowing through an output transistor; a current division circuit for dividing the sense current and outputting divided currents; a first current to voltage conversion circuit for converting a first division current output from the current division circuit to a first voltage; a second current voltage conversion circuit for converting a second division current output from the current division circuit to a second voltage; an output voltage detection circuit for controlling the current division circuit such that a drain voltage of the sense transistor becomes equal to a voltage of the output terminal; and an overcurrent protection circuit for controlling the output voltage and the output current by detecting an overcurrent flowing through the output transistor based on the first voltage. |
| Author | SAKAGUCHI KAORU |
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| Notes | Application Number: US201414199668 |
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| PublicationYear | 2016 |
| RelatedCompanies | SEIKO INSTRUMENTS INC SEIKO INSTRUMENTS, INC |
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| Snippet | The constant voltage includes a sense transistor through which a sense current flows based on an output current flowing through an output transistor; a current... |
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| SubjectTerms | CONTROLLING PHYSICS REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES |
| Title | Constant voltage circuit with drooping and foldback overcurrent protection |
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