Taidacent OPA541 OP AMP High Power Monolithic Operational Amplifier 5A Current High Voltage Audio Amplifier Sound Amplifier Board
$176.90
- $5.95 shipping from United States
-
Arrives
- Name: OPA541 High Voltage High Current Power Amplifier; Size: 96mm*64mm*41mm (length, width, height); Supply voltage range: ±10V~±40V
- The OPA541 module is a power operational amplifier capable of operating with a power supply up to 40V and providing continuous output current up to 5A. The internal current limiting circuit can be controlled by the user using a single external resistor to protect the amplifier and load from fault conditions.
- Suitable for motor-driven speaker drive, transformer drive and audio amplifier. It can also amplify triangle wave, sine wave and square wave signals.
- The power consumption of the module is large, and the power supply requires a certain margin. It is recommended to use a power supply with a current driving capacity greater than twice the output current. The module can only be powered by dual power supplies. In order to avoid unnecessary interference, it is recommended to use a linear power supply, the power supply should not exceed plus or minus 40V.
- The output signal is recommended to use the SMA to BNC cable to directly observe the effect of the oscilloscope. Poor contact or poor quality wires may cause signal attenuation or excessive noise.
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- Name: OPA541 High Voltage High Current Power Amplifier; Size: 96mm*64mm*41mm (length, width, height); Supply voltage range: ±10V~±40V
- The OPA541 module is a power operational amplifier capable of operating with a power supply up to 40V and providing continuous output current up to 5A. The internal current limiting circuit can be controlled by the user using a single external resistor to protect the amplifier and load from fault conditions.
- Suitable for motor-driven speaker drive, transformer drive and audio amplifier. It can also amplify triangle wave, sine wave and square wave signals.
- The power consumption of the module is large, and the power supply requires a certain margin. It is recommended to use a power supply with a current driving capacity greater than twice the output current. The module can only be powered by dual power supplies. In order to avoid unnecessary interference, it is recommended to use a linear power supply, the power supply should not exceed plus or minus 40V.
- The output signal is recommended to use the SMA to BNC cable to directly observe the effect of the oscilloscope. Poor contact or poor quality wires may cause signal attenuation or excessive noise.
Q: Is the magnification fixed? How to adjust?
A: The default magnification of the module is 33 times. If you need to adjust the magnification, you can only replace the resistor on the board. The resistance package is 0805. The calculation formula is given in the parameter details.
Q: Can the module directly drive the coil?
A: The module can drive the coil, but the coil internal resistance is required to be greater than 4 ohms. If it is less than 4 ohms, a series power resistance is required, otherwise the module may be damaged.
Q: Can the module amplify square wave or pulse? What is the module bandwidth?
A: The module can amplify low-frequency square waves or pulses. Because it is an audio amplifier, the total bandwidth is not high. Signals within 100K can be amplified. The module is compatible with DC input.
Q: Can the module be enlarged 1: 1? That is to only amplify the current?
A: The module can support 1: 1 amplification. You need to modify the resistance configuration magnification yourself. It is not recommended to directly configure the op amp follow mode. This is easy to self-excitation. It is recommended to change to resistance attenuation first, and then operation amplification. The total gain is 1 That's it. Q: Why the input sine wave output is square wave? What is the output current? What is the output power? A: Generally speaking, the input signal is too large, and the op amp is amplified to the cut-off distortion, which is the square wave, or the supply voltage is not enough. Can reduce the input signal and increase the supply voltage to solve. The output current of the module is determined by the output voltage and load. L = Uout / R. Similarly, the output power P = U * 1 is also determined by the output voltage and load resistance. Heat dissipating silicone grease and air cooling can be added at high power input.
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|---|---|---|
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