Current source
The precision current source is designed to provide a stable and adjustable output current across a wide range of applications. The device operates within two key parameters: the output current and the output compliance voltage. The current ranges from a low of 10 µA to a high of 10 mA, allowing for versatility in various electronic testing and measurement scenarios.
The output compliance of 30 V to -5 V ensures that the device can be used in circuits requiring both positive and negative voltage supplies, making it suitable for testing components that operate under different voltage conditions. The inclusion of a ten-turn potentiometer allows for fine-tuning of the output current, providing high precision in setting the desired current level. This feature is particularly useful in applications where exact current levels are critical, such as in semiconductor testing or calibration of measuring instruments.
The error light serves as an important feedback mechanism, indicating when the current source has reached its saturation point. This feature prevents potential damage to both the current source and the connected load by alerting the user when the output current has exceeded the safe operating limits. The design prioritizes user safety and circuit integrity, making it an essential tool in laboratory environments and for electronic engineers working on sensitive applications.
Overall, this precision current source is a reliable and flexible instrument, well-suited for a variety of electronic testing applications, ensuring accurate current delivery while providing essential feedback for optimal operation.This precision current source has 10 µA to 10 mA ranges with output compliance of 30 V to -5V. Output current is fully adjustable on each range with a calibrated, ten-turn potentiometer Error light indicates saturation. 🔗 External reference
Related Circuits
This simple linear circuit provides continuously variable regulated current (~25-400mA) from a 4-6 Volt source. The linear design is chosen for simplicity, reliability, ease of repair, and to avoid switching EMI in cave radios. The circuit requires only 0.2V...
This is a 1-amp variable-voltage power supply unit (PSU) that can adjust output voltage from approximately 3V to 24V. It features a maximum output current limit, which is particularly useful when powering up a project for the first time...
A constant-voltage active load can function as a battery during the charge cycle. The load voltage can be adjusted from 5 to 35V using potentiometer PV, simulating batteries with voltages ranging from 6 to 32V. In the testing of...
A three-phase electric motor overcurrent protection circuit. This example circuit utilizes a transformer to monitor the current, ensuring that the currents in the three-phase motor do not exceed normal operating levels. When the current exceeds the set threshold, the...
The detection of line-current flow and its indication at an electrically remote point is essential for line status monitoring in various telephone systems and auxiliary systems. The monitoring circuit must minimally unbalance or load the line, while also being...
A band-pass filter permits only signals within a specified frequency range to pass through, while attenuating or suppressing those outside this range. This is characterized by a lower frequency limit and an upper frequency limit. A typical implementation is...