Современная схема контроллера на 20 Ампер, для солнечных панелей с суммарным током 20А и рабочим напряжением 12 вольт, которое вы можете собрать самостоятельно. Схема контроллера, стандартная, и может быть похожа на ряд схем современных контроллеров заряда.
Контроллер прост в обращении и имеет вход с солнечной панели, и выход на аккумуляторные батареи.
Имеет следующую спецификацию: оригинал
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- Features
- Efficient design is suitable for use with low to medium power solar panels and solar arrays.
- Will work with most rechargeable battery types: Lead Acid (wet or gell), NiCd, NiMH and NiFe.
- Compatible with monocrystaline, polycrystaline and amorphous PV panels.
- Common Negative Ground for Solar Panel and Battery.
- Reliable solid-state circuitry, no power hungry relay with limited-life contacts.
- Built in fuse for short circuit protection, load circuitry requires its own fused disconnect.
- Capable of withstanding reverse battery and reverse PV connection.
- Charging method: Full-on below float point, chopper-stabilized PWM at float point.
- Temperature compensated float voltage set point for optimal charging at different temperatures.
- Radio quiet, can be used with sensitive radio receivers.
- High voltage transient protection on solar panel input for limited lightning protection.
- Simple 4 screw connector will accept spade lugs or wires for attaching a battery and PV panel.
- Multiple SCC3 units can be used to connect several (<20 Amp@12Vnom) solar arrays to one battery.
- Controls and Indicators
- Red/Green LED for Charge/Float state indication.
- Equalize switch for periodic maintenance overcharging.
- Float voltage adjustment trimmer pot.
- Specifications
- Nominal Battery Voltage: 12V.
- Solar Charging Current: 0 to 20 Amps continuous.
- Recommended Battery Capacity: 0.5 to 400 Amp Hours.
- Photovoltaic Panel Voltage Ratings: 12V Nominal (16-25V Open Circuit Voltage, 36 cell typical).
- Absolute maximum PV input voltage: 26VDC
- Photovoltaic Panel Power Ratings: 1W to 240W (90ma — 20A Short Circuit Current).
- Voltage Drop During Charging: 0.5V @ 10A, 1V @ 20A.
- Float Voltage Adjustment Range: 13V-15V (range can be altered).
- Float Voltage Variation during charging: +/- 0.03V
- Equalize Mode Voltage Increase: 1.5 Volts.
- Charge Controller Temperature Compensation: -7.5mV/Degree C.
- Night Time Battery Current Drain: 0.8 — 1.8ma.
- Fuse Type: 20 Amp ATO automotive fuse.
- Board Dimensions: 3.5″ wide by 3.0″ deep by 0.95″ tall.
- Fits into a standard 4″ X 4″ electrical utility box, can be mounted on the cover plate.
- Board Mounts: 3X 4-40 screws on 1/4″ spacers.
- Assembled Weight: approximately 60 grams (2oz).
