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  • AN-0000 - General Opto-coupler Notes
    ). ·. Remote sensing. ·. Excellent voltage gain ratio. Typical opto-coupler uses: ·. Elimination of ground loops. ·. Interfacing circuits operating at different voltage levels. ·. Increasing the noise immunity of a system. ·. Reducing effects of electrical noise (motor control systems). ·. Protection
  • AN-0100 - Using a VMI Opto-coupler in Conjunction with High Voltage Relays
    , the voltage must be very precise and low-noise. But the concept. can be applied to any configuration where a relay is used to switch between sources that. involve high voltage. screening_guides Voltage Multipliers, Inc. Application Note AN-0100. July 2002. Using a VMI Opto-coupler in Conjunction
  • Low-Cost, High-Speed I2C Isolation with Digital Isolators
    . communicates information from the I2C master to the Previous attempts to solve this problem have used. slaves and from the slaves to the master. That is, the diodes inherent to the opto-coupler input and additional. data transfer is bidirectional. In some cases, the SCL circuitry to avoid the latch-up
  • Output Voltage Adjustment In DC/DC Converters
    of the voltage reference, the open loop gain of the error amplifier, and the accuracy of the close loop component (such as R1, R2, RA, and RX in Figure 1). The opto-coupler and the PWM, together with the error OPAM, contribute to the dynamic or transient response of the converter (see References for more
  • AN-0200 - OC100HG Push-Pull Driver in Pockels Cells Switching Methods
    OC100HG opto-couplers in series and created a drive circuit. The LED’S for each opto-coupler are driven in opposition, so the center junction is pulled to. the positive rail (2.56kV) or the negative rail (-2.56kV) depending on the TTL input state. The circuit is really just a simple voltage divider
  • Medical Device Link .
    , transformer (core-earthed), motor (enclosure-earthed), printed wiring board, and wire insulation. To verify the required double- or reinforced-insulation requirements from mains to SIP/SOP for the same device, we must consider such components as the transformer, opto-coupler, relay, printed wiring board
  • Modeling Phototransistor Optocouplers Using PSPICE Simulation Software
    . 100. 500 1k. 5k 10k. 50k 100k. NPN phototransistor as a receiver. In this note, the opto-. coupler will be modeled by a current-controlled current. Load Resistance RL ( ). source. The forward current If through the LED emitter. will act as current control and current source acts an out-. Switching
  • Digital I/O Survival Kit
    not connect to the ground or +5 volt. supply of the target equipment. 2. At the input, by using an optical coupler (Figure 7). In this case, the input side of the device must be. powered from the remote hardware to maintain isolation. Figure 7. Opto -Coupler for Isolating. a Digital Input Channel

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