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参数资料
| 型号： | IRAUDAMP1 |
| 厂商： | International Rectifier |
| 文件页数： | 10/22页 |
| 文件大小： | 0K |
| 描述： | KIT REFERENCE DESIGN W/IR2011S |
| 标准包装： | 1 |
| 其它名称： | *IRAUDAMP1 |
Over Voltage Protection
Over Voltage Protection shuts down the amplifier if the bus voltage between –Vcc and +Vcc
exceeds 126V, the threshold is determined by the sum of the zener voltages of Z1, Z2, and Z3.
OVP protects the board from the bus pumping phenomena which occurs at very low audio signal
frequencies by shutting down the amplifier.
Power On/Off Sequence Timing
The IRAUDAMP1 is a robust design that can handle any power up/down sequence. However,
symmetrical power up is recommended to properly initiate the self oscillation. In order for the unit
to startup correctly, the negative power supply has to be initialized from zero volts.
Fig.5 shows a preferred power up sequence. At start-up, a DC output voltage appears at the
output of the LPF due to the charging of the bootstrap capacitors. To avoid this unwanted DC
output signal being to fed to the load, the output relay RLY1 engages approximately 2 seconds
after the startup condition is completed. Fig 6 below shows the start-up timing with the audio
output not being activated until approximately 2 seconds after the power supplies are stable and
the amplifier has reached steady state operation.
Fig.5 Start-up Timing
(BLU: Switching, RED: Audio Output)
www.irf.com
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| IRDC3038 | KIT W/IRU3038 PWM CTRL DDR 14-PI |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IRAUDAMP10 | 功能描述:放大器 IC 开发工具 Two Channel 300W IRS2052M IRF6775 BRD RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| IRAUDAMP11 | 功能描述:放大器 IC 开发工具 120W x 3 Ch Class D IRS2053 IRF6665 BRD RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| IRAUDAMP12 | 功能描述:放大器 IC 开发工具 Two Channel 130W IR4301 40 Ohm BRD RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| IRAUDAMP15 | 功能描述:放大器 IC 开发工具 Two Channel 35W IR4311 40 Ohm BRD RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| IRAUDAMP16 | 功能描述:放大器 IC 开发工具 2-Ch 70W 4 Ohm REF Design IR4302 RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
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