发明名称 |
AC-DC transfer standard overload protection circuit |
摘要 |
An overload protection circuit for an AC-DC transfer standard employing a thermoelement comprising a heater element and a temperature sensor. A first differentiator provides an output that is a function of the voltage across the heater element. A second differentiator produces an output that is a function of the output of the first differentiator. Further including a circuit creating an overload signal provided, which is responsive to the outputs of the first and second differentiators.
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申请公布号 |
US4733322(A) |
申请公布日期 |
1988.03.22 |
申请号 |
US19870022541 |
申请日期 |
1987.03.03 |
申请人 |
BALLANTINE LABORATORIES, INC. |
发明人 |
HARPER, JERRY;HARRISON, JR., ARCHIE J. |
分类号 |
G01R17/06;G01R19/22;H02H3/087;(IPC1-7):H01H5/04 |
主分类号 |
G01R17/06 |
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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