Solar Thermal Energy Regulator
maximum power point tracking explored
Materials
Gerber file
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Extra info / Update
Technical specifications:
* universal control board
* 10 outputs 230 VAC @ 1.2 A / 120 VAC @ 2.5 A
* 10 binary input/outputs (5 V),
* standard LCD display interface
* 5 pushbuttons
* digital potentiometer
Component list
Resistors
R1-R5 = 1kOhm 1% 250mW SMD0805
R6 = 1kOhm 5% 250mW
R8 = 4.7kOhm 4-element SIL resistor array
R7 = 4.7kOhm 8-element SIL resistor array
R9, R10 = 150Ohm 8-element SIL resistor array
Capacitors
C1 = 470µF 25V, radial electrolytic, 10mm diam.
C2-C5 = 100nF, 5mm lead pitch
Semiconductors
IC1,IC2 = SN74LS06N (Texas Instruments or equivalent)
IC3-IC12 = AQH3213 solid state relay (Panasonic)
IC13 = AD8400ARZ1 (Analog Devices)
IC14 = 7805
B1 = 1KAB10EPBF bridge rectifier (Vishay), 1.2A, 100Vpiv
D1 = 1N4004
Miscellaneous
F11 = fuse, 200mA 250V (400mA, 120V), slow blow, 5x20mm
F1-F10 = fuse, 1.2A 250V, (2.5 A, 120 V) slow blow, 5x20mm
K1-K11 = PCB terminal block, lead pitch 7.5mm
K12 = 4-way 2-level receptacle type MKKDSN 1,5/8-5,08 (Phoenix Contact)
K13 = 2-way 2-level receptacle type MKKDSN 1,5/2-5,08 (Phoenix Contact)
K14, K16, K19, K20 = 2-way PCB terminal block, lead pitch 5.08mm (e.g. Farnell # 3041440)
K15 = 2-way PCB terminal, lead pitch 5.08mm (0.2 in.) (e.g. Farnell # 3041517)
K17 = 50-way connector type N2550-6002-RB (3M)
LCD1 = alphanumeric, 4 lines of 20 characters (Elektor # 050176-73)
P1 = 10kOhm preset, horizontal
S1-S5 = pushbutton, SPNO
TR1 = 2x6V 3.2VA power transformer (for 230VAC, Farnell # 1131487)
11 holders for 5x20mm size fuses (e.g. Farnell # 146123)
10 IC sockets type DIL-8
2 IC sockets type DIL-14
PCB # 100038-1
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