Category «Basic Function Circuits»

Single Chip Divider Circuit

We can build a divider circuit using only a single chip component, a special purpose integrated circuit AD532. We can configure the AD532 as a two quadrant divider by connecting the multiplier cell in the feedback loop of the op amp and using the Z terminal as a signal input, as shown in the following …

AD532 Squarer Circuit

The following schematic diagram shows a squaring circuit.  Basically, this circuit is a simple variation of  multiplier circuit. However, the differential input capability of the AD532 can be used to obtain a positive or negative output response to the input. This circuit has useful feature which is suitable for control applications, as it might eliminate …

Direct Coupled Discrete Astable Multivibrator

This flip-flop circuit  is a free running/astable multivibrator one,  with bases and collector of both emitter biased transistor are directly coupled to each other.  Switching action is supported by means of capacitor in each emitter circuit.  This configuration produce a triangle waves at emitters. Since neither transistor can remain permanently cut off, then a free …

Power Saver for Relays

Relays are normally operated at current level where it can initiate the mechanical metal contactors movement. After contacts has been established, the current level needed to keep the conductor plates stay attached is actually smaller than the current to initiate it. This power saver circuit seems to have opposite mechanism of surge protector. This circuit …

Versatile Discrete Monostable Multivibrator

This is a versatile discrete monostable circuit. This circuit consist of 2N3819 JFET and 2N3704 transistors. This monostable multivibrator circuit  has additional input to enable or inhibit the function at any time without causing output pulse. The input of this circuit accept a standard digital IC voltage levels. Here is the schematic diagram of the …