Articles, Circuit, Components, Design, Electronics, Electronics Theory, Hobby Circuits, How components work, Techniques

Design Your Circuit. Part VIII – CD 4033 Counter


Again another Johnson counter IC for digital display. CD4033 is the 5 stage Johnson Decade counter with Decoder. The output decoder converts the Johnson code to a Seven segment decoded output which can drive LED or 7 segment display in numerical values. This IC is widely used in 7 Segment decimal display circuits, Frequency division 7 segment displays, Clocks, Timers etc. Let us see it’s is working and the circuits.

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Articles, Circuit, Components, Design, Electronics, Electronics Theory, Hobby Circuits, How components work, Techniques, Utility Gadgets

Design Your Circuit Part I – Display Driver


Use LM 3914 Integrated circuit to make an LED meter as Volt meter or Audio level indicator. Only a few discrete components are required to construct a Bar graph display in addition to this  IC.  LM 3914 / 3915 / 3916 version ICs are used in display circuits to drive either individual LED or Matrix LED. These are mainly used in circuits where precision output display is needed. Its each output becomes low one by one with the increment of 125 milli volts in its input. Let us see the details of its design.

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Design, Electronics, Hobby, Science, Techniques

Bargraph Display


LM 3914 / 3915 / 3916 versions ICs are used in display circuits to drive either individual LED or Matrix LED. These are mainly used in circuits where precision output display is needed. Its each output becomes low one by one with the increment of 125 milli volts in the input. These ICs are used in Audio displays, Temperature meters, Decibel meters etc.

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