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Schematic diagram of an opto-isolator showing source of light (LED) on the left, dielectric barrier in the center, and sensor (phototransistor) on the right [note 1]. An opto-isolator (also called an optocoupler, photocoupler, or optical isolator) is an electronic component that transfers electrical signals between two isolated circuits by using light. [1]
English: A diagram of a simple circuit using an optocoupler. When the switch S' 1 is closed, the diode emits light and the transistor conducts. v' out thus goes low. This circuit therefore acts much like a logicalNOT gate.
Circuit diagrams drawn with CircuiTikZ. CircuiTikZ is a TikZ add-on for drawing schematic diagrams. Advantages: Very professional looking output (same quality as in commercial textbooks). Active user community. Tikz can be used to draw almost anything, so it might be worth learning anyway. Disadvantages: Some learning of Tikz is required.
ASME Y14.44-2008 [1] and IEEE 315-1975 [2] define how to reference and annotate components of electronic devices. It breaks down a system into units, and then any number of sub-assemblies. The unit is the highest level of demarcation in a system and is always a numeral.
(example: if a resistor in a schematic had resistance=1000 (ohms) and the extracted netlist had the a matched resistor with resistance=997(ohms) and the tolerance was set to 2%, then this device parameter would pass as 997 is within 2% of 1000 ( 997 is 99.7% of 1000 which is within the 98% to 102% range of the acceptable +-2% tolerance error) )
IC power-supply pins are voltage and current supply terminals found on integrated circuits (ICs) in electrical engineering, electronic engineering, and integrated circuit design. [ a ] ICs have at least two pins that connect to the power rails of the circuit in which they are installed.
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MAX232 chip in DIP-16 package The die of a MAX232 MAX232 pinout: Red: power, Yellow: charge pump capacitors, Blue: outputs, Green: inputs, Pins 9–12: TTL/CMOS I/O voltages. The MAX232 is an integrated circuit by Maxim Integrated Products, now a subsidiary of Analog Devices, that converts signals from a TIA-232 (RS-232) serial port to signals suitable for use in TTL-compatible digital logic ...