本圖片是以PNG、GIF或JPEG格式上傳。然而,其中包含的資料或訊息,應該重新建立成可縮放向量圖形(SVG)檔案,以更有效率或更準確的方式儲存。如有可能,請上傳本圖片的SVG格式版本。在上傳之後,請修改維基各姊妹計畫中所有使用舊版圖片的條目(列在圖像連結章節中),替換為新版圖片,並在舊圖片的描述頁中加入{{Vector version available|新圖片名稱.svg}}模板,同時移除本模板。
描述Inverter ckt 01cjc.png
English: simple inverter configuration
日期
來源
en wikipedia
作者
English: C J Cowie
摘要
Simple inverter circuit diagram drawn by the contributor.
The upper part of the figure shows a simple inverter configuration in which a bidirectional switch is used to alternate the voltage supply between the two halves of the primary of the transformer. The secondary side of the transformer outputs a voltage square waveform whose amplitude is given by the transformation ratio of the transformer and whose frequency is given by the switching time of the switch.
The lower part of the figure shows an inverter in which the transformer is used also to command the two BJT's. When the upper BJT is in saturation, the transformer primary is subjected to a DC voltage. This voltage is mirrored into the two auxiliary windings which drives the bases of the BJT's. While approaching magnetic saturation, the voltage in these two auxiliary windings falls down and so the upper BJT turns off. Since in the transformer core the H field is not zero, a current must feed the transformer. This causes a rapid voltage inversion across all the transformer windings, which turns on the lower BJT. This cycle repeats indefinitely and causes a square voltage waveform on the secondary output of the transformer.
{{Information |Description=en:simple inverter configuration |Source=en wikipedia |Date=23:52, 14 March 2006 |Author=en:C J Cowie |Permission= }} == Summary == Simple inverter circuit diagram drawn by the contributor. The upper part of the figure shows a