Innovative DC-DC MPPT solar controllers for stand-alone or off-grid solar systems

Our MPPT charge controllers optimize, at very high efficiency, the energy supplied by one or more monocrystalline or polycrystalline photovoltaic panels powering a DC load, with variable power or speed “as the sun shines” (i.e. Solar Direct Drive or SDD), from morning to evening, even at very low brightness levels. The battery becomes unnecessary in most cases, but remains optional if desired.

To exploit all the variable solar energy available, the MPPT controller is an indispensable link between the photovoltaic panel(s) and the load (hydraulic pump, fan, refrigerator, air conditioning, bicycle, battery charger, water desalination, inverter, etc.).

MPPT = Maximum Power Point Tracking.

Find out more: data sheet 2

How do our MPPT solar controllers differ from the regular solar controllers sold on the global stand-alone solar market in recent years?

ELECDAN CONVERTER radically simplifies photovoltaic energy optimization. Instead of using complex digital sequences to automatically find the Maximum Power Point (MPP), ELECDAN CONVERTER precisely determines the MPP (at least 10 times per second) by means of permanent, self-powered analog tracking.

Advantages: disappearance of the usual battery and chemical capacitors; uselessness of a current sensor and switches; deletion of memory, microprocessor or customizable algorithms.

Controlling the DC-DC regulator connected to the mono or polycrystalline panel, this novel analog MPPT allows extreme miniaturization and tenfold reliability, while increasing thermal insensitivity and electromagnetic protection (automatic restart after a disturbance or possible electromagnetic attack).

Find out more: data sheet 1

Our range of MPPT DC-DC controllers for SDD (Solar Direct Drive) off-grid sites or motors

• Range from 50W/5V to over 2.4kW/100V
• Suitable for solar systems comprising monocrystalline or polycrystalline photovoltaic panels (rigid or flexible)
• No battery required (but can be connected to most of our controllers, if desired)
• Response time: less than 0.1 seconds
• Relieves the strain on mechanical transmissions: when suddenly connected to a loaded motor, the regulator supplies it with a voltage that is immediately lowered, then restored linearly in just a few seconds (graphs on request).

MPPT buck solar controller, 150W

• Possible output voltage: 5V to 28V, depending on minimum panel voltage
• Maximum efficiency: 99%
• Case weight: 26 grams
• Case dimensions: only 28 x 26 x 20 mm, i.e. 15 cm3 (excluding any cooling heatsink)
• IP67 sealing
• These qualities, combined with an adapted mono- or poly-crystalline photovoltaic panel, facilitate a wide range of SDD DC applications: refrigerator, fan, helical pump, bicycle…
• Can be positioned directly under the aluminum edge of the photovoltaic panel

Find out more: data sheet 3

MPPT buck solar controller, 300W

• Possible output voltage: 5V to 28V, with a 300W / 33V photovoltaic panel (or, for example, 2 x 150W panels)
• Efficiency: up to 99%
• Case weight: 60 grams
• Case dimensions: only 39 x 32 x 22 mm, i.e. 28 cm3 (excluding any cooling heatsink)
• IP67 sealing
• These qualities, combined with an adapted mono- or poly-crystalline photovoltaic panel, facilitate a wide range of SDD DC applications: refrigerator, fan, helical pump, bicycle…
• Can be positioned directly under the aluminum edge of the photovoltaic panel

Find out more: data sheet 4

MPPT buck-boost solar controller, 300W 

• Possible output voltage: any from 5V to 50V
• Input voltage: any from 10V to 52V
• Efficiency: up to 98%
• Case weight: 140 grams
• Case dimensions: 51 x 51 x 26 mm, i.e. 68 cm3 (excluding any cooling heatsink)
• IP67 sealing
• These qualities, combined with an adapted mono- or poly-crystalline photovoltaic panel, facilitate a wide range of SDD DC applications: refrigerator, fan, helical pump, tricycle…
• Can be positioned directly under the aluminum edge of the photovoltaic panel

Find out more: data sheet 5

MPPT buck solar controller, 600W  

• Possible output voltage: 20V to 28V, with 2 photovoltaic panels 300W / 33V, in parallel
• Efficiency: up to 99%
• Case weight: 140 grams
• Case dimensions: 51 x 51 x 26 mm, i.e. 68 cm3 (excluding any cooling heatsink)
• IP67 sealing
• These qualities, plus two adapted mono- or poly-crystalline photovoltaic panels, facilitate a wide range of SDD DC applications: refrigerator, fan, helical pump, tricycle…
• Can be positioned directly under the aluminum edge of the photovoltaic panel

Find out more: data sheet 6

MPPT boost solar controller, 600W  

• Possible output voltage: from 40V to 56V, with 2 separate 300W / 33V photovoltaic panels
• Input voltage: any from 33V to 52V
• Efficiency: up to 98%
• Case weight: 270 grams
• Case dimensions: 100 x 50 x 26 mm, i.e. 130 cm3 (excluding any cooling heatsink)
• IP67 sealing
• These qualities, plus two adapted mono- or poly-crystalline photovoltaic panels, facilitate a wide range of SDD DC applications: refrigerator, fan, helical pump, tricycle…
• Can be positioned directly under the aluminum edge of the photovoltaic panel

Find out more: data sheet 7

MPPT boost solar controller, 1200W

• Possible output voltage: from 40V to 56V, with 4 separate 300W / 33V photovoltaic panels
• Input voltage: any from 33V to 52V
• Efficiency: up to 99%
• Case weight: 290 grams
• Case dimensions: 100 x 50 x 26 mm, i.e. 130 cm3 (excluding any cooling heatsink)
• IP67 sealing
• These qualities and 4 adapted mono- or poly-crystalline photovoltaic panels facilitate a wide range of “solar-powered” applications: air conditioning, ventilation, boating, quadricycle, 1.2kW inverter (48V DC –> 230V~AC)…
• Can be positioned directly under the aluminum edge of the photovoltaic panel

Find out more: data sheet 9

MPPT boost solar controller, 2400W

• Possible output voltage: 80V to 100V, with 8 separate 300W / 33V photovoltaic panels
• Input voltage: any from 33V to 52V
• Efficiency: up to 99%
• Case weight: 590 grams
• Case dimensions: 120 x 94 x 26 mm, i.e. 293 cm3 (excluding any cooling heatsink)
• IP67 sealing
• The 4 innovative MPPTs in this controller optimize the electrical energy of 4 pairs of 300W panels, positioned independently in pairs. These qualities facilitate a wide range of uses, from morning to evening: air conditioning, stirring stagnant water, water desalination, boating, electric vehicles, 2kW inverter (100V DC –> 230V~AC), lithium battery charging (72V or 84V).

Find out more: data sheet 11

Universal buck-boost MPPT solar controller, max. 450W

• Adjustable output voltages, max. range: 1V to 60V
• Input voltage: any from 12V to 60V
• Efficiency: up to 97%
• Case weight: 90 grams
• Case dimensions: 65 x 37 x 19 mm (including aluminum base)
• IP67 sealing
• Self-powered MPPT that allows battery-free operation, even in low-light conditions, to continue driving a motor in underpowered mode or to recharge a completely discharged battery for example
• High automatic modulation of the selected output voltage, 60V max. down to 1V, in the event of high inrush current or very low brightness
• Automatic restart after high inrush current, potential mechanical blockage, short-circuit, overheating or intense electromagnetic disturbance.

Find out more: data sheet 16

Our range of MPPT DC-DC solar chargers for lithium batteries

  

Universal MPPT solar charger, 600W, for 12V to 72V lithium batteries (or other loads, such as motors)

• Fixed or adjustable charging voltage, from 14V to 90V, with 2 separate 300W photovoltaic panels
• Charging current (depending on battery voltage): 15A to 6.8A
• Permissible input voltage: 33V to 52V (16.5 to 52V at half power)
• Efficiency: up to 98%
• Case weight: 270 grams
• Case dimensions: 100 x 50 x 26 mm, i.e. 130 cm3 (excluding any cooling heatsink)
• IP67 sealing
• These qualities and two adapted mono- or poly-crystalline photovoltaic panels enable optimized and adapted solar charging, for 6 types of lithium batteries (from 12V to 72V), with a maximum charging current of 15A to 6.8A.
• Can be positioned directly under the aluminum edge of the photovoltaic panel

Find out more: data sheet 8

Universal MPPT solar charger, 1200W, for 48V to 144V lithium batteries (or other loads, such as motors)

• Fixed or adjustable charging voltage, from 56V to 180V, with 4 separately-mounted 300W photovoltaic panels
• Charging current (depending on battery voltage): 15A to 6.8A
• Input voltage: 33V to 52V
• Efficiency: up to 98%
• Case weight: 590 grams
• Case dimensions: 120 x 94 x 26 mm, i.e. 293 cm3 (excluding any cooling heatsink)
• IP67 sealing
• These qualities and 4 mono- or poly-crystalline photovoltaic panels enable optimized, customized solar charging for 5 types of lithium batteries (from 48V to 144V), with maximum charging currents from 15A to 6.8A.

Find out more: data sheet 10

Optional heatsinks available: datasheet 13 for our MPPT controllers and chargers

Various applications: click here

Direct download of all datasheets 1 to 16 : click here

To know more about our innovative MPPT: click here

About ELECDAN CONVERTER

Specialized since 1974 in electrical energy conversion, analog calculation and signal processing, over the past 5 years we have also been studying and testing our innovative MPPT (breakthrough technique and technology, new patent). We have also expanded our knowledge of “green”, autonomous or complementary energies. So don’t hesitate to ask us for advice, if our technical data sheets aren’t didactic enough.

We are also at your disposal to study special applications.

Note: we are also involved in the development of ultra-light photovoltaic panels, with the option of an inbuilt 150W or 300W MPPT controller.