Table of Contents
Advertisement
Quick Links
UM10155
Discrete Class D High Power Audio Amplifier
Rev. 02 — 5 September 2006
Document information
Info
Keywords
Abstract
Content
Class D Audio Amplifier, Universal Class D, UcD, PWM Audio Amplifier,
High Power Audio.
This user manual describes the operating instructions and the most
important background information of the Philips Semiconductor Discrete
Class D High Power Audio Amplifier Demonstrator Board. With proper
heatsinking of the Power MOSFETs and a well dimensioned power supply,
the PWM amplifier is capable of supplying 200 W of high quality audio
power into a 4
loudspeaker.
User manual
Advertisement
Table of Contents
Related Manuals for Philips UM10155
Summary of Contents for Philips UM10155
- Page 1 Abstract This user manual describes the operating instructions and the most important background information of the Philips Semiconductor Discrete Class D High Power Audio Amplifier Demonstrator Board. With proper heatsinking of the Power MOSFETs and a well dimensioned power supply, the PWM amplifier is capable of supplying 200 W of high quality audio...
-
Page 2: Contact Information
Figure 20060801 initial version Contact information For additional information, please visit: http://www.semiconductors.philips.com For sales office addresses, please send an email to: sales.addresses@www.semiconductors.philips.com UM10155_2 © Koninklijke Philips Electronics N.V. 2006. All rights reserved. User manual Rev. 02 — 5 September 2006... -
Page 3: Introduction
The Universal Class D (UcD) version 1.00 demonstrator board implements a 200 W true RMS (into a 4 load) high quality audio power amplifier on a very compact printed-circuit board. The amplifier is built-up of discrete components only, and makes use of Philips patent WO 03/090343. 001aaf148 Fig 1. -
Page 4: Circuit Diagram
xxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x xxxxxxxxxxxxxx xxxxxxxxxx xxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxx xxxxxxxxxxxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxx x x 4.7 k 0.05 47 k 100 nF 2.2 k BC857 22 k BAS321 100 F 100 nF... -
Page 5: Printed-Circuit Board Layout
J10 3. Printed-circuit board layout 001aaf151 001aaf150 Fig 3. Top copper layout Fig 4. Bottom copper layout UM10155_2 © Koninklijke Philips Electronics N.V. 2006. All rights reserved. User manual Rev. 02 — 5 September 2006 5 of 12... -
Page 6: Specifications
MOSFET Q14 (ratio: 50 mV/A) and the voltage between J8 and J9 is proportional to the current in MOSFET Q13 (ratio: 50 mV/A). With the use of an external UM10155_2 © Koninklijke Philips Electronics N.V. 2006. All rights reserved. User manual Rev. 02 — 5 September 2006... -
Page 7: Important Notice
Initially, leave J6 and J8 unconnected; J7 and J11 are at the same (ground) potential Fig 7. Wiring diagram UM10155_2 © Koninklijke Philips Electronics N.V. 2006. All rights reserved. User manual Rev. 02 — 5 September 2006 7 of 12... -
Page 8: Adding External Features
BC846) and the resistor must limit the base current of the transistor to approximately 1 mA (in case of logic level driving, that would mean R = 4.7 k ). UM10155_2 © Koninklijke Philips Electronics N.V. 2006. All rights reserved. User manual Rev. 02 — 5 September 2006... -
Page 9: Short-Circuit And Overcurrent Protection
IC1, IC2 Fast operational amplifier; feed with +12 V and 12 V supplies Philips HEF4071; feed with 5 V UM10155_2 © Koninklijke Philips Electronics N.V. 2006. All rights reserved. User manual Rev. 02 — 5 September 2006 9 of 12... -
Page 10: Sonic Performance Versus Efficiency Trade-Off
Changing R9 to a lower value decreases dead-time. It is left the responsibility of the experimenter to prevent thermal runaway, but assistance from Philips will be available through the local sales representatives. -
Page 11: Legal Information
WO 03/090343 — owned by Koninklijke Philips Electronics N.V. (int. patent such information. application) Right to make changes —... -
Page 12: Table Of Contents
‘Legal information’. © Koninklijke Philips Electronics N.V. 2006. All rights reserved. For more information, please visit: http://www.semiconductors.philips.com. For sales office addresses, email to: sales.addresses@www.semiconductors.philips.com. Date of release: 5 September 2006 Document identifier: UM10155_2...