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Les choses les plus importantes que nous devons prendre soin sont la polarisation correcte et sa tension de decalage et de phase droite utilisé dans le circuit.
the things we have to take care when dealing with Op-Amp while testing an electronics circuit is:
the heat
Which arise during the work of electronic circuits and as a result it has some of the electrical energy in the various components cause overheating of some electronic components (such as semiconductor diodes and transistors and some integrated circuits) in the internal parts damage also causes the temperature rise in deciphering some seams for printed circuits, which leads to a break in the signal paths or in the non-arrival of nutrition efforts dc to the parties and components of electronic circuits and thus break down to work. That should provide a good source of ventilation works on emerging dispersing heat during operation of electronic circuits and lack of accumulation with the operating time.
2. rise and a sudden drop in voltage
Which in turn leads to a sudden change in the current and voltage feeding, which may cause damage to some of the electronic circuit components must therefore consulting with independent power supply Stabilizers in order to protect devices in addition to the use of units of nutrition, containing voltage organizations and current in order to ensure stability and predictability in points run circles and elements of electronic when values that designed them.
3. The electrical and magnetic fields
Which arise when there is an electronic circuit next to other devices that emit electrical or magnetic fields where these areas affect the work of the various departments and components that must be protected electronic circuits placing them inside metal containers connected Balordy and thus get rid of the effects of these areas.
4. eat connectors printed circuit Printed Circuit
As well as eat parties wires connecting circuits and so induced effects air and interactions chemical terms of eroding these connectors metal or layers of oxide on the edges composed and thus become non-conductive signals which leads to a break in the signal or non-arrival of a stream feeding into the various elements of trails and this must polish connectors printed circuit as well as the parties Delivery materials portfolio to protect against the effects flights.
Protection systems automatically protect various parts Example:
1. protection systems against overload OverLoad Protection
2. protection systems against shocks Mechanical Protection
3. protection systems against misuse Misuse Protection
The most important things we have to take care are:
Proper biasing
off set voltages
The biasing of the op-amp, offset voltage and the Input in both the terminals should have a difference zero.
First things is human safety & then component safety, for Human safety manage things to avoid Electrical shock & for component Safety take care of right connections. For an OP AMP you must take care of correct biasing & its offset voltage and right phase used in circuit.
When ever work with op amp always take care of proper biasing and also take care of off set voltages
First i will select op-amp ic and see on datasheet on internet side and then check specification of this ics.
Always Consider that the voltages at in input of op-amp are always equal or the difference of voltages at the input of Op-Amp is always equal to zero i.e +Vi = -Vi
