Nikolas Hagelstein

Operational Amplifier Circuits Infographic Operational amplifier chips are very easy to use, especially as there are many easy circuits along with the relevant circuit design formulas. In this infographic, I've summarised some of the more popular operational amplifier circuits along with the relevant design formulas. I've included the basic inverting and non-inverting amplifiers along with a summing amplifier, differential amplifier and voltage follower. Also included are low pass filter, high pass filter, as well as the differentiator and integrator circuits. its worth noting that the filter circuits use a Butterworth response as this provides some easy calculations and its response is normally ideal for the sorts of applications where these circuits are normally used. More infographics can be found by heading over to my website and navigating: Resources >> Infographics

Transistor Circuits Compilation (01) Infographic My infographic shows a variety of very useful transistor circuits from the basic common emitter amplifier through to a high pass filter, capacitance multiplier, switch, and more . . In this infographic I provide some of the essential transistor circuits that are very useful for any design engineer. Transistor circuits are often needed either on their own or when interfacing in one way or another with ICs. The basic common emitter amplifier is used in many areas as a standard audio or other amplifier. The emitter follower is the standard circuit for a transistor buffer. Often it is directly coupled to the previous stage as this makes biasing easy and removes the need for coupling capacitors that may affect the frequency response. The capacitance multiplier may be used in some form of power supply circuit to remove unwanted ripple and spikes. The other circuits also have their applications - the switch as a driver for one of many different applications, the high pass filter to remove lower frequencies, and the current source is also important and widely used. For ore information head over to my website (URL in my profile) and then navigate to Resources >> Infographics.