发明名称 |
Power-transistor slew-rate controller employing only a single capacitor per half-bridge |
摘要 |
In a half-bridge output stage employing a complementary pair of output power transistors, each driven through an integrating stage for controlling the slew-rate, a single integration capacitance is conveniently shared by the two integrating stages that drive the power transistors. A pair of switches connect the single integrating capacitance to the input of either one of the two integrating stages and are controlled by a pair of nonoverlapping signals that have a certain advance with respect to the pair of logic signals that drive the half-bridge stage. In the case of a driving system of a multi-phase machine, the two configuring switches of the single integration capacitor may be driven by a pair of control signals that drive a different phase winding of the multi-phase machine, thus eliminating the need for dedicated circuitry for generating said pair of anticipated signals to control the configuration switches.
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申请公布号 |
US5469096(A) |
申请公布日期 |
1995.11.21 |
申请号 |
US19940251693 |
申请日期 |
1994.05.31 |
申请人 |
SGS-THOMSON MICROELECTRONICS, S.R.L. |
发明人 |
NESSI, MAURIZIO;FUCILI, GIONA |
分类号 |
H02P6/10;H02P6/08;(IPC1-7):H03K3/00 |
主分类号 |
H02P6/10 |
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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