AMPLIFIER
PURPOSE:To increase the maximum input level of a transfer impedance amplifier used for an optical receiver or the like. CONSTITUTION:This amplifier is composed of a transfer impedance amplifier 2 provided with a feedback part constituted by parallelly connecting a feedback resistor 9 and a transisto...
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| Main Authors | , |
|---|---|
| Format | Patent |
| Language | English |
| Published |
25.03.1994
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| Edition | 5 |
| Subjects | |
| Online Access | Get full text |
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| Abstract | PURPOSE:To increase the maximum input level of a transfer impedance amplifier used for an optical receiver or the like. CONSTITUTION:This amplifier is composed of a transfer impedance amplifier 2 provided with a feedback part constituted by parallelly connecting a feedback resistor 9 and a transistor 13 for current branch, and transistor 10 for buffer. The output of a buffer part is set so as to be clamped with an input current smaller than the output of the transfer impedance amplifier, and the difference voltage between a transfer impedance amplifier output voltage 14 and a buffer part output voltage 8 is impressed between the gate sources of the transistor 13 for current division. Since the output of the buffer is early clamped when an input current is increased, the transistor 13 for current division is turned on, and the saturation of a main amplifier transistor 3 is relaxed. |
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| AbstractList | PURPOSE:To increase the maximum input level of a transfer impedance amplifier used for an optical receiver or the like. CONSTITUTION:This amplifier is composed of a transfer impedance amplifier 2 provided with a feedback part constituted by parallelly connecting a feedback resistor 9 and a transistor 13 for current branch, and transistor 10 for buffer. The output of a buffer part is set so as to be clamped with an input current smaller than the output of the transfer impedance amplifier, and the difference voltage between a transfer impedance amplifier output voltage 14 and a buffer part output voltage 8 is impressed between the gate sources of the transistor 13 for current division. Since the output of the buffer is early clamped when an input current is increased, the transistor 13 for current division is turned on, and the saturation of a main amplifier transistor 3 is relaxed. |
| Author | MARUYAMA MAKOTO ERA YOSHIKAZU |
| Author_xml | – fullname: MARUYAMA MAKOTO – fullname: ERA YOSHIKAZU |
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| Notes | Application Number: JP19920236852 |
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| PublicationDate | 19940325 |
| PublicationDateYYYYMMDD | 1994-03-25 |
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| PublicationDecade | 1990 |
| PublicationYear | 1994 |
| RelatedCompanies | HITACHI LTD |
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| Score | 2.4239724 |
| Snippet | PURPOSE:To increase the maximum input level of a transfer impedance amplifier used for an optical receiver or the like. CONSTITUTION:This amplifier is composed... |
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| SubjectTerms | AMPLIFIERS BASIC ELECTRONIC CIRCUITRY ELECTRICITY |
| Title | AMPLIFIER |
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