Discrete Active Virtual Ground

You might find op-amp based active virtual ground, but here a  schematic diagram shows that you can build such circuit using discrete components.  This circuit uses most any complementary pair of small-signal transistors such as PN2222A and PN2907A. The diode that is used in this circuit is generic small-signal types like 1N914. You can also use other transistor type as […]

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Half Supply Generator Provides Virtual Grounding

This is a circuit that provide virtual ground that it is required on single-supply operation. This circuit consist of voltage divider and buffer. This circuit generates voltage equal to VCC/2. The voltage divider is bypassed by capacitor. This voltage is generated and buffered by the TLE2426. Here is the schematic diagram of half supply generator provides virtual grounding : To […]

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