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參數(shù)資料
| 型號(hào)： | IRAUDAMP1 |
| 廠商： | International Rectifier |
| 英文描述： | High Power Class D Audio Power Amplifier using IR2011S |
| 中文描述： | 高功率D類音頻功率放大器使用IR2011S |
| 文件頁數(shù)： | 9/22頁 |
| 文件大小： | 3219K |
| 代理商： | IRAUDAMP1 |
Protection
The IRAUDAMP1 includes protection features for overvoltage (OVP), overcurrent (OCP), and DC
current protection. All of the protection uses OR logic so that any of the protection features when
activated will disengage the output relay to cut off the load and protect the speakers. OCP and
OVP functions are latched, DC protection is unlatched. To reset the protection, the bus voltage
has to be reset to zero volts before re-applying power. The protection circuitry will also shutdown
the amplifier if a fault condition is detected.
Fig.4 Functional Block Diagram of Protection
DC protection
DC voltage output protection is provided to protect the speakers from DC current. This abnormal
condition occurs only when the power amplifier fails and one of the MOSFETs remains in the ON
state. DC protection is activated if the output has more than ±3V DC offset. DC protection is
unltached, and the amplifier will resume normal operation about 2 seconds after a fault condition
has been removed.
Over Current Protection
Over Current Protection will activate and shut down the entire amplifier if the amount of current
sensed at the positive power supply in either channel exceeds the preset value. If an overcurrent
condition occurs, the voltage generated across a shunt resistor turns on the OCP detection
transistors, Q2 and Q4 to send a signal to the protection logic.
www.irf.com
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| IRAUDAMP10 | 功能描述:放大器 IC 開發(fā)工具 Two Channel 300W IRS2052M IRF6775 BRD RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V |
| IRAUDAMP11 | 功能描述:放大器 IC 開發(fā)工具 120W x 3 Ch Class D IRS2053 IRF6665 BRD RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V |
| IRAUDAMP12 | 功能描述:放大器 IC 開發(fā)工具 Two Channel 130W IR4301 40 Ohm BRD RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V |
| IRAUDAMP15 | 功能描述:放大器 IC 開發(fā)工具 Two Channel 35W IR4311 40 Ohm BRD RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V |
| IRAUDAMP16 | 功能描述:放大器 IC 開發(fā)工具 2-Ch 70W 4 Ohm REF Design IR4302 RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V |
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