AC coupling can solve the problem of positive rail voltage mismatch if the control signal runs continuously

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Other Materials from the Main Document

• Article «Driving CMOS totem poles with logic signals, AC coupling, and grounded gates»
• Figure 1. The simplest case of logic signal totem pole drive - direct connection works if V⁺⁺ <= V_L
• Figure 2. AC coupling can solve the problem of positive rail voltage mismatch if the control signal runs continuously
• Figure 3. Ditto for AC coupling and negative rail mismatch, too
• Figure 4. "Grounded" gate Q3 maintains C1 charge when logic signal stops
• Figure 5. Grounded gate Q4 shifts logic signal to negative rail referred C2 and Q2