Details:
HP-2 Super Parallel regulator CPI servo power, low internal resistance, high precision, excellent transient response,
ideal for sanding DAC, preamp, amplifier voltage amplifier stage and the input stage, actually listen rich sense of
low-frequency, high frequency and delicate.
PCB size: 75*125*2mm
Highlights:
1, use double bridge rectifier, in the dual single systems can use one transformer
2, low noise <350UV, high voltage stability after thermal stability over / load regulation of <0.5%, followed by basic non-load voltage drop
3, the voltage adjustable upon request from 8V-50V. Current output 10MA-1.5A (depending on the rectifier with the regulator varies)
Note:
R1
Output current = 0.65V / R1, R1 = 10R . on the board has two Reserve position for R1, generally for the preamplifier or voltage
amplifier stage, R1 use 10R will be ok, to play a little more extreme,you can According to the above formula, you can by adjust the
single or dual resistor to Get personal preference sound.
R2
Output voltage is 12-30V, use about 10K
Output voltage is 30-50V, use about 15K
Output voltage is 50-60V, use about 22K
R3
Output voltage is 12-30V, use 4K-5K,
Output voltage is 30-50V, use 11K-12K
Output voltage is 50-60V,use 12-16K
Other:
the Default finished board R2 R3 Resistor is for Less than 30V output voltage.
Standard Edition uses ST BD139-140 as regulator, if you need voltage output more than 50V, need change the BD139-140 with A1358-C3421.
and the also need change all the caps voltage more than 50V, But you need to have their associated parts.
Output voltage and the input voltage (DC) recommends no less than 4V pressure, recommended 5-8V pressure, low pressure
will affect the stability of the filter lines and voltage, the effect dropped.
A reasonable set of input current, generally set higher than the amp quiescent current 30%
Type:
Type 1:just 1pcs bare pcb ,have no any parts
Type 2:Diy kit ,all the components need yourself to solder it,not included 2pcs nichicon 10000uf 50v capacitance
Type 3:Diy kit ,all the components need yourself to solder it, included 2pcs nichicon 10000uf 50v capacitance
Type 4:Assembled board,not included 2pcs nichicon 10000uf 50v capacitance
Type 5:Assembled board, included 2pcs nichicon 10000uf 50v capacitance