DEVICE FOR EXCITING A RESOLVER, AND RESOLVER ARRANGEMENT
The present invention relates to providing an electrical voltage for exciting an excitation coil of a resolver (2). In this case, the electrical voltage for exciting the excitation coil of the resolver (2) can be generated by means of pulse-width-modulated driving of at least one half-bridge (Hl). I...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The present invention relates to providing an electrical voltage for exciting an excitation coil of a resolver (2). In this case, the electrical voltage for exciting the excitation coil of the resolver (2) can be generated by means of pulse-width-modulated driving of at least one half-bridge (Hl). In this case, the switching elements of the half-bridge (Hl) are fully turned on, with the result that losses such as occur during linear operation of semiconductor switches, for example, can be avoided. If appropriate, the voltage (U_e) provided by the half-bridge (Hl) can be additionally increased by means of suitable resonant circuits (LI, CI, C3 and the like).
本发明涉及用于激励旋转变压器(2)的励磁线圈的电压的提供。用于激励旋转变压器(2)的励磁线圈的电压在此能够借助于至少一个半桥(H1)的经脉冲宽度调制的操控来生成。在此,所述半桥(H1)的开关元件完全接通,从而使得能够避免例如在半导体开关的线性运行中出现的损失。必要时,借助于适合的振荡回路(L1、C1、C3、...)能够附加地升高由所述半桥(H1)提供的电压(U_e)。 |
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