L_SMPS600 is a switching unstabilised power supply with bipolar output voltage.
The L_SMPS600 is a high efficiency, safety class 2 switching power supply specifically designed for use with UcD/NCore/Purifi amplifier modules. Key features include high efficiency over the entire load range, small form factor, low mass and very low radiated and induced EMI. The L_SMPS600 features overcurrent protection with a high turn-on threshold, combined with large primary electrolytic buffer capacitors for high performance and guarantees high dynamic power at the output of the connected amplifier.
Over the entire power range, the output transistors operate in switching mode at zero voltage and near zero current. The current through the transformer is close to sinusoidal, with a minimum of high-frequency harmonics, thus reducing radiated noise and increasing efficiency. The no stabilisation and very low characteristic impedance of the converter improves the dynamic performance .
The L_SMPS600 is equipped with an auxiliary +/-15V bipolar source and load control circuitry that interfaces directly with our S_AUDIO range of amplifiers as well as being compatible with UcD/NCore/Purifi modules. The STBY signal is generated for the load under conditions of mains voltage presence, no overcurrent, no overheating and after the end of soft start. In addition, it is possible to quickly switch off the power supply unit with an additional signal in case of external alarms. Optionally, the unit can be equipped with an auto switch-off circuit on presence of an audio signal with a timer, as well as an additional independent source of standby voltage 5V 100mA.
Physical characteristics:
Length, without connector/with connector connected, mm: 140/148
Width, mm: 110
Height from board level/on 8mm posts, max, mm: 43/51
Weight, with connectors, g: 340
Maximum allowable parameters:
Supply mains voltage, V: 230+/-15%
Supply mains frequency, Hz: 47-63Hz
Maximum long-term output power RMS, W: 350 W
Current protection tripping power, W: 800+/-200
Maximum total capacitance of capacitors*, µF: 10000
59$
The +/-48V and +/-53V models are available.
other options are available on request, selectable in multiples of 5V.
Autostart module by audio signal +10 USD
Designed for 2V RMS audio source.
shipping 12$
*No CE certification, shipment to some countriesi may be complicated!
- low switching noise;
- high output power;
- bidirectional synchronous rectifier suppressing pumping effect;
- increased capacitance of high-voltage capacitors;
- advanced control options;
The L_SMPS600 is a high efficiency, safety class 2 switching power supply specifically designed for use with UcD/NCore/Purifi amplifier modules. Key features include high efficiency over the entire load range, small form factor, low mass and very low radiated and induced EMI. The L_SMPS600 features overcurrent protection with a high turn-on threshold, combined with large primary electrolytic buffer capacitors for high performance and guarantees high dynamic power at the output of the connected amplifier.
Over the entire power range, the output transistors operate in switching mode at zero voltage and near zero current. The current through the transformer is close to sinusoidal, with a minimum of high-frequency harmonics, thus reducing radiated noise and increasing efficiency. The no stabilisation and very low characteristic impedance of the converter improves the dynamic performance .
The L_SMPS600 is equipped with an auxiliary +/-15V bipolar source and load control circuitry that interfaces directly with our S_AUDIO range of amplifiers as well as being compatible with UcD/NCore/Purifi modules. The STBY signal is generated for the load under conditions of mains voltage presence, no overcurrent, no overheating and after the end of soft start. In addition, it is possible to quickly switch off the power supply unit with an additional signal in case of external alarms. Optionally, the unit can be equipped with an auto switch-off circuit on presence of an audio signal with a timer, as well as an additional independent source of standby voltage 5V 100mA.
Physical characteristics:
Length, without connector/with connector connected, mm: 140/148
Width, mm: 110
Height from board level/on 8mm posts, max, mm: 43/51
Weight, with connectors, g: 340
Maximum allowable parameters:
Supply mains voltage, V: 230+/-15%
Supply mains frequency, Hz: 47-63Hz
Maximum long-term output power RMS, W: 350 W
Current protection tripping power, W: 800+/-200
Maximum total capacitance of capacitors*, µF: 10000
59$
The +/-48V and +/-53V models are available.
other options are available on request, selectable in multiples of 5V.
Autostart module by audio signal +10 USD
Designed for 2V RMS audio source.
shipping 12$
*No CE certification, shipment to some countriesi may be complicated!
Attachments
![20240321_154954[1].jpg](/community/data/attachments/1196/1196859-0096bd836461ba0c65be43ddda32dcea.jpg?hash=AJa9g2Rhug)
If I am not mistaken - is classified as LC resonant. The current through the transformer is sinusoidal, ZVS throughout the range, and almost zero switching current.
DIY product, haven't done any comprehensive tests, but everything written in the documentation is provided, including electrical safety.
About 100 units have been delivered to customers.
DIY product, haven't done any comprehensive tests, but everything written in the documentation is provided, including electrical safety.
About 100 units have been delivered to customers.
Do you have any data about efficiency and noise. Let us know when you have a universal 50/60 Hz, 110-240 V available.
So far I have produced transformers for +/-48, +/-53, +/-57V output and 230V input.
There is no 110V input version yet.
There is no 110V input version yet.