Hello, 7815 three-terminal voltage regulator parameter testing includes the following aspects:
1. Output voltage detection: Use a multimeter or oscilloscope to measure whether the output voltage of the regulator meets the specifications.
2. Input voltage detection: Use a multimeter or oscilloscope to measure whether the input voltage of the regulator meets the specifications.
3. Static current detection: Use a multimeter to measure whether the static current of the regulator is within the specification range when it is not connected to the load.
4. Load capacity detection: Use load resistance or load circuit to simulate the actual load and measure whether the output voltage and current of the regulator under different loads meet the specifications.
5. Temperature stability detection: heat the regulator to high temperature or cool it to low temperature to measure whether its output voltage and current are stable.
6. Power supply noise detection: Use oscilloscope to measure whether the noise level at the output end of the regulator is within the specification range.
The above is a basic introduction to 7815 three-terminal voltage regulator parameter detection. The specific detection methods and steps can be adjusted and improved according to the specific situation and needs.
7815 is a commonly used three-terminal voltage regulator integrated circuit, its output voltage is fixed positive 15V, the output current is up to 1.5A, the maximum allowable input voltage is 35V, normal use, the input voltage is required to be less than this value, otherwise it is easy to damage.
If the 7815 has a stable load current, a step-down resistor can be inserted into the input to make it work at a voltage above 36V.