| 发明名称 |
OPERATOR COIL PARAMETER BASED ELECTROMAGNETIC SWITCHING |
| 摘要 |
One embodiment describes an operating coil driver circuitry, which includes a control circuitry that outputs a trigger signal and a reference voltage; an operational amplifier that compares the reference voltage to a node voltage, in which the node voltage is directly related to current flowing through an operating coil of a switching device and the operational amplifier outputs a logic high signal when the node voltage is higher than the reference voltage and outputs a logic low signal when the node voltage is lower than the reference voltage; and a flip-flop that outputs a pulse-width modulated signal to instruct a switch to supply a desired current to the operating coil based at least in part on the trigger signal and the signal output by the operational amplifier. |
| 申请公布号 |
US2016133410(A1) |
申请公布日期 |
2016.05.12 |
| 申请号 |
US201514832666 |
申请日期 |
2015.08.21 |
| 申请人 |
ROCKWELL AUTOMATION TECHNOLOGIES, INC. |
发明人 |
Bock Christopher H.;Wieloch Christopher J.;Kinsella James J.;Dziekonski Stefan T. |
| 分类号 |
H01H47/22 |
主分类号 |
H01H47/22 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An operating coil driver circuitry comprising:
a control circuitry configured to output a trigger signal and a reference voltage; an operational amplifier configured to compare the reference voltage to a node voltage, wherein the node voltage is directly related to current flowing through an operating coil of a switching device and the operational amplifier is configured to output a logic high signal when the node voltage is higher than the reference voltage and to output a logic low signal when the node voltage is lower than the reference voltage; and a flip-flop configured to output a pulse-width modulated signal to instruct a switch to supply a desired current to the operating coil based at least in part on the trigger signal and the signal output by the operational amplifier. |
| 地址 |
Mayfield Heights OH US |
