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参数资料
| 型号： | AN1042 |
| 厂商： | ON SEMICONDUCTOR |
| 英文描述： | High Fidelity Switching Audio Amplifiers Using TMOS Power MOSFETs |
| 中文描述： | 高保真开关音频放大器使用的TMOS功率MOSFET |
| 文件页数： | 10/12页 |
| 文件大小： | 108K |
| 代理商： | AN1042 |
AN1042/D
http://onsemi.com
10
switching frequency to minimize RFI. Proper shielding and
layout techniques must be followed and a line filter will be
necessary.
With paralleled devices, larger heatsinks, and redesigned
output filters it is feasible to drive loads of less than 8 ohms.
The new E series devices can be operated much closer to
their maximum ratings in switching service. The
availability of E series devices in 250 volt ratings will make
70.7 volt line amps feasible without transformers. When
the E series become available at 500 volt ratings, they will
make it practical to generate 120 vac from switching
amplifiers. Computer back up power supply and 50 Hz
power generation are two promising applications for such
devices.
AMPLIFIER PERFORMANCE
Table 3. Harmonic Distortion
Frequency
% Distortion
10 Hz
0.08
100 Hz
0.08
1.0 kHz
0.19
10 kHz
0.31
Intermodulation Distortion: 0.24%
(60 Hz and 6 kHz mixed at 4:1)
Signal to noise ratio: 100 dB below full rated power
Power bandwidth: dc to 20 kHz
Damping factor: 80
Efficiency: 92% at 72 Watts of output power
NOTE:
Distortion measurements taken with Tektronix SG505
oscillator and AA501 analyzer. Output set to
±
30 Volts
into 8 Ohms.
Figure 12. 1.2 kHz Square Wave Response
Output: 20 Volts/Div.
Input: 0.4 Volts/Div.
Horizontal: 100
μ
s/Division
CLASS D AMPLIFIER PARTS LIST
Capacitors
C1, C7, C8: 0.1, 63 Volts
C2, C3, C12, C13: 470 pF
C4, C11: 47 pF
C5, C6, C9B: 0.47, 63 Volts
C9A: 1, 63 Volts
C10A: 0.22, 63 Volts
C10B: 0.15, 63 Volts
Diodes
CR1, CR2: 1N4148
CR3, CR4: 1N5242B
Inductors
L1: 98
μ
H (31 Turns)
L2: 68
μ
H (26 Turns)
Resistors
R1, R15, R16, R25, R26, R30, R31, R32, R33: 10 k
R2: 1 m
R3: 470
R4: 4.99 k, 1%
R5: 100 k, 1%
R6, R7, R10, R11: 4.7 k
R8: 470 k
R9: 2.2 k
R12, R13, R14: 22
R28: 1 k, 1%
R17, R18: 4.7
R19, R20, R21, R22, R29: 10 k, 1%
R23, R24: 220 k
R34: 100
R27: 0.05, 1%, 2 Watts, non–inductive
All resistors 1/4 W unless otherwise noted.
All resistors 5% unless otherwise noted.
All resistor values are Ohms unless otherwise noted.
All capacitors 1000 V ceramic unless otherwise noted.
All capacitor values are
μ
Fd unless otherwise noted.
Integrated Circuits
U1: MC14575
U2: MC14573
U3: MC14528
U4: 14066
Transistors
Q1: VP0300L
Q2: VN0300L
Q3, Q6: MTP12P10
Q4, Q5: NTP12N10
NOTES: T1, L1 and L2 use Ferroxcube EC35/35G gapped ferrites
with #16 Litz wire.
U4C, U4D and U1A are not used.
相关PDF资料 |
PDF描述 |
|---|---|
| AN1042D | High Fidelity Switching Audio Amplifiers Using TMOS Power MOSFETs |
| AN1062 | Circular Connector; No. of Contacts:6; Series:MS27508; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:8; Circular Contact Gender:Socket; Circular Shell Style:Box Mount Receptacle; Insert Arrangement:8-35 RoHS Compliant: No |
| AN1077 | ISL6244EVAL1 Multi-phase Evaluation Board Setup Procedure |
| AN1082 | Using the ISL6401 RSLIC PWM Controller Evaluation Board |
| AN1406 | DESIGNING WITH PECL (ECL AT + 5.0) |
相关代理商/技术参数 |
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| AN-1042 | 制造商:CYMBET 制造商全称:CYMBET 功能描述:EnerChip CC Backup Power for Epson RX-8564 Real-Time Clock |
| AN1042D | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:High Fidelity Switching Audio Amplifiers Using TMOS Power MOSFETs |
| AN1043 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Unique Features of the MCP23X08/17 GPIO Expanders |
| AN-1043 | 制造商:CYMBET 制造商全称:CYMBET 功能描述:EnerChip CC as Backup Power for a DS1390 Real-Time Clock |
| AN10436 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:TDA8932B/33(B) Class-D audio amplifier |
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