发明名称 |
PRECISE CONTROL OF VCE IN CLOSE TO SATURATION CONDITIONS |
摘要 |
A pull-down circuit uses an npn transistor operating at close to saturation and the collector/emitter voltage is used as the pull-down voltage. To keep this within strict limits the npn transistor is connected in circuit with other transistors and resistors as well as a current source that generates a current proportional to absolute temperature. By selecting the values of the resistors and transistor parameters the collector/emitter voltage may be kept stable within a small range over wide temperature variation.
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申请公布号 |
CA2302900(A1) |
申请公布日期 |
2001.09.29 |
申请号 |
CA20002302900 |
申请日期 |
2000.03.29 |
申请人 |
NORTEL NETWORKS CORPORATION |
发明人 |
ILIASEVITCH, STEPAN |
分类号 |
G05F3/22;(IPC1-7):H03K17/60 |
主分类号 |
G05F3/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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