dBm to Watt converter Stripline Impedance calculator Microstrip line impedance Antenna G/T Noise temp. age and other influences, such as optocoupler current transfer ratio. OUTPUTS: CTR = 2 or 200% Useful converters and calculatorsįollowing is the list of useful converters and calculators. optocoupler isolation barrier relies on a combination of a physical gap (i.e. INPUTS: Ic (Collector Current or Output Current) = 10 mA, Input Current (If) = 5 mA The above equation or formula is used for Optocoupler CTR calculation.ĬTR is usually expressed as a percentage.įollowing calculator is used to calculate CTR (Current Transfer Ratio) of an Optocoupler (Transistor based). The CTR is an important parameter because it determines the efficiency of the optocoupler in transferring electrical signals between two circuits. With the input current applied to LED coupling device. It is defined as ratio of the output or collector current of the device (i.e. Here no electric connection between LED and phototransistor of optocoupler.Īdvantages and disadvanatges of an Optocoupler>ĬTR is the important parameter used to measure performance of an optocoupler. When signal is applied to infrared LED, it turns ON and consecutively light falls on phototransistor.Īs a result, phototransistor starts conducting. As per DIN EN/IEC 6, this optocoupler is suitable for safe electrical insulation only within the. It consists of a pair of infrared LED and phototransistor. Current Transfer Ratio in Selected Groups. This page covers Transistor Optocoupler CTR (Current Transfer Ratio) calculator.It mentions Optocoupler CTR formula or equation used in this calculator.
Transistor Optocoupler CTR Current Transfer Ratio calculator
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