Package include:
Finished linear Power supply X 1
1.2M Teflon silver wire output DC cable X 1 (5.5*2.1mm)
Default is not include the AC input cable.
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We have following several kinds voltage for choose.
Output voltage / current
1:DC5V --6A
2:DC7V --6A
3:DC9V --6A
4:DC12V --6A
5:DC15V --5A
6:DC16V --4.8A
7:DC18V --4.2A
8:DC19V --4.2A
9:DC20V --4A
10:DC24V --3.5A
11:DC28V --3A
12:DC30V --2.6A
13:DC32V --2A
If you need other voltage, we can accept custom-make.
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Technical highlights
All-discrete topology.
Single-pass, series regulator design.
No IC (integrated circuits) are used. This allows complete design control over all operating points and parameters for superior performance.
Low noise, high PSRR
A constant-current source feeds a zener diode as a stable voltage reference. A low-pass filter (with a corner frequency of 1.6Hz) prevents zener noise from being introduced into the error amplifier. This is an effective yet lower-cost alternative to expensive voltage reference ICs. The low-pass filter also provides a soft-start characteristic.
The output noise (unloaded) is less than 13µV at 24VDC output (measured using a Tangent LNMP (low-noise measurement preamplifier) and a Fluke 187 50000-count DMM in ACmV mode). The output noise is even less when the output voltage is lower. This is much better than the noise of an IC regulator based PSU tested under identical conditions.
The error amplifier is a discrete implementation of an opamp with a high open-loop gain of 102.5dB. The voltage supply to the error amplifier is isolated with capacitance multipliers to boost its PSRR (power supply rejection ratio). This greatly improves the line regulation performance of the PSU.
A long-tailed pair differential amplifier with current mirror and constant current source forms the first stage of the error amplifier. The second stage is the voltage amplification stage (VAS), also with constant current source load. The 3rd stage is comprised of the power MOSFET output devices configured as a source follower.