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...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: BRUCKHAUS TIM
Format: Patent
Sprache:chi ; eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
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)。