# Cell Driver Circuit (90)

In either case, the resultant or varied **pulse train** (47a xxx 47n) (*calibration of 44a xxx 44n*) becomes **incoming gated pulse signal** (48) of figure (3-5) to **cell driver circuit** (90) of Figure (3-5) which <span style="text-decoration: underline;">performs a switching function</span> by switching "**off**' and "**on**" <span style="text-decoration: underline;">electric ground</span> being applied to **opposite side** (48) of **primary coil** (26) of Figure (3-19).

<table border="1" id="bkmrk-%C2%A0figure-%283-18%29-%C2%A0figu" style="border-collapse: collapse; width: 100%;"><tbody><tr><td class="align-center" style="width: 49.9383%;"> Figure (3-18)

[![image-1703200544967.png](https://stanslegacy.com/uploads/images/gallery/2023-12/scaled-1680-/perOMBdYqG5zfDB2-image-1703200544967.png)](https://stanslegacy.com/uploads/images/gallery/2023-12/perOMBdYqG5zfDB2-image-1703200544967.png)

</td><td class="align-center" style="width: 49.9383%;"> Figure (3-19)

[![image-1703200555466.png](https://stanslegacy.com/uploads/images/gallery/2023-12/scaled-1680-/UateQAwSqhsH4mKF-image-1703200555466.png)](https://stanslegacy.com/uploads/images/gallery/2023-12/UateQAwSqhsH4mKF-image-1703200555466.png)

</td></tr></tbody></table>

The resultant **pulse wave form** (49a xxx 49n) of Figure (3-18) <span style="text-decoration: underline;">superimposed onto</span> **primary coil** (26) is <span style="text-decoration: underline;">exact duplicate</span> of **proportional pulse train** (47a xxx 47n).

<p class="callout warning">However, each **pulse train** (47) (49) are <span style="text-decoration: underline;">electrically isolated from each other</span>.</p>

Only voltage cross-over from regulated **power supply** (150) of Figure (3-6) to **battery supply** (28) occurs, as illustrated in Figure (3-6).

<table border="1" id="bkmrk-%C2%A0figure-%283-6%29-figure" style="border-collapse: collapse; width: 100%;"><tbody><tr><td class="align-center" style="width: 49.9383%;"> Figure (3-6)![image-1703200473559.png](https://stanslegacy.com/uploads/images/gallery/2023-12/scaled-1680-/WYgsEnP7ENzVVbQQ-image-1703200473559.png)</td><td class="align-center" style="width: 49.9383%;">Figure (3-5)![image-1703195613050.png](https://stanslegacy.com/uploads/images/gallery/2023-12/scaled-1680-/d5x6lw5jRAJT48i1-image-1703195613050.png)</td></tr></tbody></table>