Microphone-amplifier
This circuit utilizes the ZTX450 and ZTX550 transistors configured in a push-pull output stage. The following measurements were recorded at maximum volume: Input: 0.4 mV rms, Output: 1.8 V rms, Voltage gain: 4500, Maximum output before distortion: 2.25 V rms, Supply current: approximately 3.5 mA, Zero output supply current: 3.5 mA. Additional specifications include Wattage: 0.034 W and Frequency response: 250 Hz to 28 kHz, with a MICROPHONE rated at 2000 and an inductance of 60 mH.
This circuit design employs the ZTX450 and ZTX550 transistors in a push-pull configuration, which is effective for driving speakers or other loads with high efficiency and low distortion. The input signal, measured at 0.4 mV rms, is amplified significantly by the circuit, achieving an output level of 1.8 V rms. The impressive voltage gain of 4500 indicates that the circuit is capable of amplifying weak signals to a level suitable for further processing or driving a load.
The maximum output voltage before distortion is recorded at 2.25 V rms, which is critical for ensuring audio fidelity and performance in applications such as audio amplification. The supply current during operation is approximately 3.5 mA, which suggests that the circuit is designed to be power-efficient while maintaining adequate performance levels. The zero output supply current also measures at 3.5 mA, indicating that the circuit has a stable quiescent current, essential for avoiding thermal runaway and ensuring reliability in operation.
The circuit operates with a wattage of 0.034 W, making it suitable for low-power applications. Furthermore, the frequency response of 250 Hz to 28 kHz indicates that the circuit is capable of handling a wide range of audio frequencies, making it suitable for various audio applications, including microphones, which are noted to have a rating of 2000 with an inductance of 60 mH. This specification suggests the circuit can effectively interface with dynamic microphones, providing clear sound reproduction across the specified frequency range. Overall, this circuit design is well-suited for audio amplification tasks requiring high gain and low distortion.This circuit features the ZTX450/ZTX550 transistors in a push-pull output stage. The following readings were taken at maximum volume: Input: 0.4 mV rms, Output: 1.8 V rms, Voltage gain: 4500, Max. output before distortion: 2.25 V rms -supply current ~ 3.5 mA, Zero output-supply current: 3.5 mA, Wattage: 0.034 W, Frequency response: 250Hz to 28kHz, MICROPHONE 2000 60mH
This circuit design employs the ZTX450 and ZTX550 transistors in a push-pull configuration, which is effective for driving speakers or other loads with high efficiency and low distortion. The input signal, measured at 0.4 mV rms, is amplified significantly by the circuit, achieving an output level of 1.8 V rms. The impressive voltage gain of 4500 indicates that the circuit is capable of amplifying weak signals to a level suitable for further processing or driving a load.
The maximum output voltage before distortion is recorded at 2.25 V rms, which is critical for ensuring audio fidelity and performance in applications such as audio amplification. The supply current during operation is approximately 3.5 mA, which suggests that the circuit is designed to be power-efficient while maintaining adequate performance levels. The zero output supply current also measures at 3.5 mA, indicating that the circuit has a stable quiescent current, essential for avoiding thermal runaway and ensuring reliability in operation.
The circuit operates with a wattage of 0.034 W, making it suitable for low-power applications. Furthermore, the frequency response of 250 Hz to 28 kHz indicates that the circuit is capable of handling a wide range of audio frequencies, making it suitable for various audio applications, including microphones, which are noted to have a rating of 2000 with an inductance of 60 mH. This specification suggests the circuit can effectively interface with dynamic microphones, providing clear sound reproduction across the specified frequency range. Overall, this circuit design is well-suited for audio amplification tasks requiring high gain and low distortion.This circuit features the ZTX450/ZTX550 transistors in a push-pull output stage. The following readings were taken at maximum volume: Input: 0.4 mV rms, Output: 1.8 V rms, Voltage gain: 4500, Max. output before distortion: 2.25 V rms -supply current ~ 3.5 mA, Zero output-supply current: 3.5 mA, Wattage: 0.034 W, Frequency response: 250Hz to 28kHz, MICROPHONE 2000 60mH