PP logo

POUL PETERSEN

Electronic design and prototype development.


Poul Petersen site index
Contents
Poul Petersen home page | Poul Petersen site index

General pages
Poul Petersen home page
POUL PETERSEN - or PP - is a minor, highly specialized firm, exclusively dedicated to advanced electronic design and development - mainly within the analogue field of pro-audio and studio equipment.
Product design
One of my primary services is development of electronic appliances like Hi-Fi equipment, electronic cross over networks, navigational equipment for ships and laboratory equipment.
My contribution can be the entire product design - from product specification to production - or only a part of the design like for example PCB design.
PCB lay-out
One of my services is PCB lay-out for low frequency electronics, both singlelayer and multilayer PCBs for leaded as well as SMD components.
I can supply the documentation for PCB manufacturing or I can supply the PCBs - optionally with components - for prototypes and in low volumes.
This page describes the information I require in order to create a PCB lay-out from a schematic in the most economical way, and also lists the documentation I supply with a PCB design.
Repairs
In addition to electronic design, I make repairs on professional audio equipment and laboratory equipment.
Among the brands, I have repaired so far, are : AB International, Ambisonics, Amcron, ATC, Audio Precision, BSS, C-Audio, Carver Professional, Cerwin Vega, Chevin Research, Crest, Drawmer, Dynacord, EEA (E2A), Harrison, HH Electronics, JBL, Lab-gruppen, Nexo, NP Elektroakustik, PP, Revox, Rodec, Samson, Soundcraft, Studer, Telefunken and Urei.
Poul Petersen home page | Poul Petersen site index

Design examples
Hi-Fi products
Some selected examples of products, that I have been involved in designing, manufacturing or modifying for different manufacturers of consumer Hi-Fi equipment and High-End Hi-Fi equipment.
The examples includes CD player, D/A converter, External clock input for CD player, Integrated amplifier, Loudspeaker crossover network, Poweramplifier, Preamplifier.
PA products
Some selected examples of products, that I have been involved in designing, manufacturing or modifying for different manufacturers of PA equipment. Some products sold under my own brand name - PP - are also included.
The examples includes Active loudspeaker crossover network, Direct Inject box, Passive loudspeaker crossover network, Pick-up preamplifier.
Recording & studio equipment
Some selected examples of products, that I have been involved in designing, manufacturing or modifying for different manufacturers of studio equipment and recording equipment.
The examples includes Fixed studio equalizer, Microphone amplifier, Mixer, Telephone hybrid, Power amplifier.
Software
Some selected examples of software, that I have developed for my own use, for general sale or from customer specification.
The examples includes Audio Precision software, Demonstration software.
Test & measurement equipment
Some selected examples of test & measurement equipment I have been involved in designing. Some products sold under my own brand name - PP - are also included.
The examples includes Cable tester, Microphone amplifier, Noise generator, Sine wave generator.
Miscellaneous
Some selected examples of products, that I have been involved in designing, manufacturing or modifying for different manufacturers.
The examples includes Automobile subwoofer amplifier, Critical speed indicator for high-speed ferry, Logarithmic rectifier with large dynamic range, Low power photocell with modulated infrared light, Optoisolator for the Philips IC-bus serial interface, Controller for motorized lamp, Telephone answering machine with external tape recorder, Transformer balanced audio input stage.
PP CT01 datasheet
Cable-, fuse- and battery-tester.
PP DI02 datasheet
Phantom powered direct inject box.
PP IA18 datasheet
Balanced input module with 24 dB/octave high-pass filter for XO01.
PP II01 datasheet
Optoisolator for the Philips I²C-bus serial interface.
PP LI06 datasheet
Ultra low noise loudspeaker protection limiter for XO01.
PP MI02 datasheet
Measurement microphone amplifier for PC ISA slot.
PP RA03 datasheet
High performance discotheque and PA gramophone preamplifier with feedback canceling filter.
PP XO01 datasheet
Modular 2 channel 2-way / 1 channel 3/4-way crossover network in half-width 19" enclosure.
Poul Petersen home page | Poul Petersen site index

Application notes
Selecting the limiter threshold for a loudspeaker power limiter
Also contains a list of the voltage gains for some amplifiers from: AB International, Amcron (Crown), Carver, Cerwin Vega, Dynacord, Harrison, HH Electronics, JBL, NAD.
Limiter threshold calculator for a loudspeaker power limiter
Also contains a list of the voltage gains for some amplifiers from: AB International, Amcron (Crown), Carver, Cerwin Vega, Dynacord, Harrison, HH Electronics, JBL, NAD.
Identifying acoustical feedback to a gramophone
Poul Petersen home page | Poul Petersen site index

Miscellaneous
1
Miscellaneous
These pages contains information that is not directly related to my primary business - audio electronics design.
Subjects includes: Miscellaneous, Links.
APWIN software
Some small utilities for Audio Presision's APWIN.
Circuit Examples
This is the index to the circuits part of my web site.
Poul Petersen home page | Poul Petersen site index
V Line
Product design
PCB lay-out
Repairs
V Line
Hi-Fi products
PA products
Recording & studio equipment
Software
Test & measurement equipment
Miscellaneous
Spacer

Poul Petersen, C/Faya 14, 35120 Arguineguín, Las Palmas, Spain.
Tel/Fax: (+34) 928 152 807, Skype: poul.petersen.gc.
http://www.poulpetersen.dk, E-mail: pp@poulpetersen.dk
Copyright © Poul Petersen 1998 - 2015. Valid HTML 4.0!