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The project presented here is a high-speed, low-power 4-channel digital galvanic isolator. This innovative solution enables the transfer of digital signals between circuits with different power domains, achieving an impressive power consumption of as little as 0.74mW per channel at a data rate of 1 Mbps, while operating on a 1.8V supply. At the heart of this project is the MAX22445FAWE chip, which features reinforced isolation, allowing it to withstand a voltage rating of 5KV-RMS for 60 seconds. This robust design ensures reliable and secure signal transmission.
D101
The project presented here is a high-speed, low-power 4-channel digital galvanic isolator. This innovative solution enables the transfer of digital signals between circuits with different power domains, achieving an impressive power consumption of as little as 0.74mW per channel at a data rate of 1 Mbps, while operating on a 1.8V supply. At the heart of this project is the MAX22445FAWE chip, which features reinforced isolation, allowing it to withstand a voltage rating of 5KV-RMS for 60 seconds. This robust design ensures reliable and secure signal transmission.
The project offers flexible configuration options, accommodating all possible unidirectional channel configurations to suit any 4-channel design. This versatility makes it an ideal solution for a wide range of applications, including SPI, RS-485, digital I/O, etc.
Notably, the output that enables the A side of the isolation can be connected to a shared SPI bus, allowing the CS signal to directly enable the MISO signal on the isolator. Additionally, all other output enables are traditional active-high, providing a convenient and straightforward interface.
Overall, this high-speed, low-power digital galvanic isolator project provides a reliable and efficient solution for transferring digital signals between circuits with different power domains, making it an attractive option for a variety of applications.
This is an Isolated Potentiometer Module that integrates a LOC110 linear optocoupler, an isolated DC-DC converter, an onboard 10K linear potentiometer, 2 x tactile switches, 2 x PC817 optocouplers, and supporting circuitry. It is designed for reliable use in VFD drives, process control, PLCs, automation systems, and other industrial applications where isolated analog signals and isolated switch inputs are required.
D102
Transmitter
This module enables users to establish a versatile fiber-optic link for applications requiring a low-cost/high immunity solution. It transmits TTL source data over a fiber-optic connection, supporting transmission distances of up to 19 meters with standard fiber-optic cable and up to 53 meters with enhanced cable.
Receiver
This module enables users to create a versatile fiber-optic link for applications requiring a low-cost solution. This receiver module receives data through a fiber-optic link and outputs standard TTL-level signals. It supports transmission distances of up to 19 meters with standard fiber-optic cable and up to 53 meters with enhanced cable.
D103
This is a 4-channel optocoupler module features 4x PC817 optocouplers and an onboard DC-DC converter. It provides reliable electrical isolation between the processor and the high-voltage side. The high-voltage side can be configured as either pull-up or pull-down, while the low-voltage side supports both common-cathode and common-anode configurations. Configuration is selectable via onboard resistors. The integrated 5 V DC-DC converter supplies power to the low-voltage side.
D104
The project presented here is a video driver with 6 channel input selection using onboard jumpers or a microcontroller interface. The circuit features a wide dynamic range and frequency response. The IC can be used with low voltage starting at VCC=2.8V and the project supports a broad range of input signals, depending on whether or not a 6-dB video and video driver is included and what combination of sync tip clamp type and bias (resistor terminal) type input is used. RCA connectors are provided for video input and output connection. The header connector helps to power the board. Jumpers J2 to J3 are provided to select the input channels. 6-channel video selection can also be controlled using an external circuit or microcontroller by applying high or low TTL signal to CTLA, CTLB, CTLC, CTLD pins. In this case, use the center pins of jumper J1 to J4.
D105
This Fuel level Monitor allows users to measure the fuel level using a resistive float sensor in the fuel tank. The project measures the fuel level and displays it on a 15-segment bar-graph display. The project is Arduino-compatible and consists of ATMEGA328 controller. The resistive sensor with a divider resistor is connected to Analog pin A0 of the MCU chip. The 15 LEDs of different colors are connected to various Arduino pins.
D107
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