Power Supply Module for Class D Amplifier

Click to Enlarge	For the NewClassD Modules we offer a Low Noise Power Supply Module, interfacing to a traditional toroid transformer. The Power Supply Module is built on a 100 by 100 mm (4 by 4') 4 layer Circuit Board, allowing for minimal transfer impedance in the power supply, as each connection makes use of an entire uninterrupted power plane, when applicable. The Power output of this board is practically only limited by available power in the transformer!
Click to Enlarge	In case you need to mount the Power Supply and Amplifiers in a low profile case, or stand base of your Loudspeakers, the main Capacitors can be soldered onto the two Fast On pins at the end of the PCB, allowing building height of just 40 mm (1.5'). for both Power Supply and Amplifiers. The two Fast On terminals have direct access to the low impedance power planes, inside the Power Supply PCB. Rectification is based on the ultrafast recovery diode from International Rectifier type 60EPU02PBF. [Click to download a datasheet].
Click to Enlarge	The key features of this diode is 60 Amps 200 Volts, and a recovery time of just 35 nS, even at loads of 60 Ampere, it gives virtually no charge release noise to the main capacitors. With a peak Current of up to 800 Ampere, (non repetitive) and just 1 Volt forward drop at some 100 Ampere it makes a pretty stiff power source to the amplifier.
Click to Enlarge	There are 8 of these rectifier diodes, forming a basic currentless ground setup, for lowest possible noise. Due to the 4 layer PCB the impedance connecting to the amplifier module, is only limited by the ESR of the capacitors, unlike 1 or 2 layer boards where several times the ESR of the capacitor is often added in PCB traces and jumpers, before connected to the amplifier. The PCB is gold plated, to meet the RoHS directive, and also give the best sound quality. The whole Power Supply Unit s mounted on a 3 mm Aluminium base, providing adequate cooling, and a solid mounting base. The exact same mounting base is also used for the stereo version of the amplifier modules.

Power Supply Board 10.000/63 4 layer with Ultra Fast Recovery Diodes 4 wire € 133.96 Ex VAT In Stock

Power Supply Board 10.000/63 4 layer with Ultra Fast Recovery Diodes 6 wire € 133.96 Ex VAT In Stock

Power Supply Board 15.000/80 4 layer with Ultra Fast Recovery Diodes 4 wire € 174.36 Ex VAT In Stock

Power Supply Board 15.000/80 4 layer with Ultra Fast Recovery Diodes 6 wire € 174.36 Ex VAT In Stock

4 Wire or 6 Wire?

Two different versions are offered, one that makes use of a Gate Drive Winding on the main transformer, or a separate 15 V AC Gate Transformer, this is denominated as the 6 wire type. It basicly uses a total of 6 wires from the toroid transformer. Rectification of the gate drive voltage is performed also by low noise fast recovery diodes, to preserve the noiseless operation, with no magnetic interference of the amplifiers and sound.

The other version is the 4 wire type, for use with traditional 4 wire transformers, used in Class A/B amplifiers. These transformers have a standard 40V-0V 40V-0V configuration (Or other voltages). In this case the Gate Drive Voltage is derived from the GND level, by use of a lownoise analog regulator on the power supply module.

How to choose...
It's very simple to choose 4 wire or 6 wire Power Supply:
If you have a transformer with 6 secondary wires, choose the 6 wire PSU.
If you have a transformer with only 4 secondary wires (most common), then choose the 4 wire PSU.
If you have a main transformer with 4 secondary wires, and a smaller aux transformer (15V 15 VA) for the Gate Drive, then choose the 6 wire PSU.

Specifications

Max Voltage	2 x 42 V AC = +/-63 V DC
Min Voltage	2 x 18 V AC = +/-24 V DC
Max Continous Current	60 Ampere
Power Throughput	5040 VA (~5 kW)
Z Out	10 mOhm (0.01 Ohms)
Gate Drive Unreg	21 V DC 1 Amp
Gate Drive Regulated	20 V 1 Amp +/- 1V
Size LxWxH	100 x 106 x 62mm (4 by 4.2 by 2.5')
Weight	0.3 kg

Click to Enlarge	NewClassD products are made Lead Free, and with only the highest quality Brand Name components, and innovative Technology, to give you Excellence You Recognize Instantly!
Click to Enlarge	Innovative solutions make your amplifier project easy, and will result in first class performance, and musical revelations you will enjoy for years.