The Connexelectronic SMPS is newest generation SMPS and benefits from a small form factor, low weight and a high efficiency (up to 93%).
It can output 300W continous and 400W peak power, and can be adjusted +- 10% from its stock voltage. It also features a auxiliary power output which outputs around 10.5-13V, (proportional to main output voltage, 2/5 for 28V version (28V/5*2=11.2V) and 2/7 for 38V version(38/7*2=10.9) . The max. continuous current for the aux output should not exceed 500ma, and the total capacitance of the circuits connected to the aux output should not exceed 2200uF (otherwise the fuses might blow).
Technical info:
Half Bridge resonant SMPS capable of delivering 300W continuous and up to 400W peak power. The stock available output voltages are adjustable within approx. +-10% and the ordered voltage value is at the middle of the interval. For example the 24V version can be adjusted from 22V to 26V and the 28V version can be adjusted from 26V to about 31V. It uses zero-voltage switching half bridge resonant topology. The main feature of this power supply is the absence of the heatsinks both for power switches and rectifier diodes, due to increased efficiency, up to 93.8% for higher voltage versions, due to the fact that the transistors are soft-switched, and the current through the switches has sinusoidal shape, and there are no additional losses in output inductors. Also, the amount of EMI is much less than any conventional power supply, and could be compared with a linear well regulated power supply. The size and weight is greatly reduced, allowing to install the SMPS300R to be installed into low profile case, with it's 100x100mm and 32 to 40mm tall depending on the voltage version and capacitors used. The SMPS300R features over-current protection which limit the output current at about 130% of the maximum peak power, about 400W. This power supply is suitable for both class AB and class D/T amplifiers, which have the PSRR greater or at least 54dB. Target applications for this power supply unit include the TA2022 based amplifiers, TDA8920 or TDA8950 based amplifiers and, Hypex UCD180 Amplifier modules, TK2050 amplifiers or TDA7293/4 amplifiers.
SHIPPING:
Shipping price for the first board is 15USD. Additional boards will be 5USD each. We do combine shipments! If you want to buy other items, click buy it now but wait with doing the payment. Contact us and request the total.
We can also ship with DHL (4-6 days). The price is 10USD more to Germany, Spain, France, Finland, Italy, Switzerland, Hungary, Ireland, Netherlands, Norway, Sweden, Denmark, Philippines. 13USD more to USA and Canada. Contact us for DHL quote to other countries.
We ship with Swiss post which is normally faster than regular chinese post. Parcels are sent daily to Switzerland, where they are sent out as Swiss international mail. For customers in Asia and Australia we use Hong Kong or Singapore mail.
Shipping time:
USA, western europe 10-35 days (normally 15-20 days)
Italy: Shipping to Italy can be very slow, so please only buy if you agree to that.
Other countries: 7-35 days
Buyer has to take care of all import tax/custom fees.
It will be shipped 3-5 days after received payment.