Opto isolator current transfer ratio1/2/2024 ![]() ![]() dBm to Watt converter Stripline Impedance calculator Microstrip line impedance Antenna G/T Noise temp. ![]() OUTPUTS: CTR = 2 or 200% Useful converters and calculatorsįollowing is the list of useful converters and calculators. The 4N25 is an optocoupler for general purpose applica - tions. The Current Transfer Ratio (CTR) is an electrical. INPUTS: Ic (Collector Current or Output Current) = 10 mA, Input Current (If) = 5 mA 20 at IF 10 mA, VCE 10 V) Input-output isolation voltage (Viso 2500 Vrms) Dual-in-line package UL approved CSA approved IEC/EN/DIN EN 6 approved. base current in the case of photo transistor, a new parameter similar to is defined for an optocoupler. 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). 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. It consists of a pair of infrared LED and phototransistor. This page covers Transistor Optocoupler CTR (Current Transfer Ratio) calculator.It mentions Optocoupler CTR formula or equation used in this calculator. aging, the current transfer ratio (CTR) of optocouplers degrades. Transistor Optocoupler CTR Current Transfer Ratio calculator interface isolated using an optocoupler circuit and an. ![]()
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