Electric Vehicle Chargers
Standard models are described below. They are :
  • 3KW  EVC207
  • 1.2KW  EVC203)
  • 300W EVC101
In addition, we can custom design any special charger you may require.

Our chargers feature multi-stage charge algorithms, in firmware, for ordered
chemistry.  The Chemistry can be always changed by replacing a chip.
EVC207: 3KW Isolated Power-Factor-Corrected On-Board Charger
(Ordered for any 48V to 200V Battery from 115VAC, 208VAC or 230VAC line).
  • COMPACT & ISOLATED.
  • POWER FACTOR CORRECTED (PFC): wide input voltage range (90 to 260VAC) and draws
         Sinusoidal current from line so your hydro meter registers the useful charge energy
  • SHORT CIRCUIT AND WRONG BATTERY POLARITY PROTECTED.
  • FIRMWARE DRIVEN ALGORITHM FOR EVERY BATTERY CHEMISTRY.
  • AMBIENT TEMPERATURE COMPENSATED.
  • LED AND BEEPER indications for ALARMS and  BATTERY State of Charge.
  • PULSED EQUALIZATION CHARGE PHASE
  • OPTIONAL RELAY OPENS DURING CHARGE (prevents Drive away)  
  • ALARM INPUT & FIRMWARE TO LOWER ITS CHARGE CURRENT FOR LITHIUM BATTERY
       (refer to BMS section of this website).

TECHNICAL SPECIFICATIONS:
Input Voltage:     90 to 260VAC
Output Voltage:  up to equalization voltage of the ordered battery (190V for 144V battery).
Output Current:  3000W  divided by absorb voltage. For example, 45A for 84V battery.
Efficiency:  at least 90%
Isolation:  The line input and battery output are galvanically isolated.
Controls: Standard unit has no operator Controls. It automatically performs a multi-stage charge.
Firmware upgrades: is factory provided for future battery chemistries, upon or after purchase.
Temperature Sensor: Internal  sensor measures ambient temp.
Charge Phase Indications: by 3 LEDs.
Protections: Against over-current, over-heating and  reverse battery connection.
Alarm:   Beeper to attract attention upon faults.
Size & Weight::  12x8x3.5 inches,     8 lb.
EVC203: 1.2KW Isolated Switch Mode Charger
(Ordered for Any 24 to 160V Battery from 115V)

- COMPACT AND LIGHT FOR ON-BOARD INSTALLATION.
- ISOLATED & MICROPROCESSOR BASED AUTOMATIC CHARGER.
- FIRMWARE DRIVEN CHARGE ALGORITHM FOR ANY CHEMISTRY.
- TEMPERATURE COMPENSATED.
- SHORT-CIRCUIT AND REVERSE BATTERY PROTECTED.
- LED CHARGE STATUS INDICATION AND BEEPER ALARM.
- OPTIONAL ANTI-DRIVE AWAY RELAY.
- ALARM INPUT & FIRMWARE TO LOWER CURRENT FOR LITHIUM BATTERY
(refer to BMS section of this website).

TECHNICAL SPECIFICATIONS:
This charger features are same as EVC207 except it has lower power (1.2KW), has no power factor
correction (efficiency 75%).   It isoffered for 115VAC only.


Sealed models for both chargers (EVC203S & EVC207S) are available for boat and
wet applications.
- AUTOMATICALLY CHARGES YOUR 12V ACCESSORY BATTERY up to 20A.
- GALVANICALLY ISOLATED INPUT AND OUTPUT.
- ORDERED FOR SPECIFIED INPUT BATTERY VOLTAGE .
- ADJUSTABLE OUTPUT AROUND 14V
- INTERNAL RELAY TO SWITCH INPUT HIGH VOLTAGE OFF BY KEY-SWITCH
.
DESCRIPTION:
This Isolated Converter automatically charges 12V accessory battery from the main
high voltage traction battery.  Without it, you need 2 line charges; one for high
voltage traction battery and the other for 12V accessory battery.    
TECHNICAL SPECIFICATIONS:
INPUT VOLTAGE: 48 to 200V DC (specify per order).
OUTPUT VOLTAGE :Adjustable 11V to 16V
OUTPUT CURRENT: It is limited to 20A and decreases as 12V battery becomes charged. Becomes  zero when
12V                                                    battery is fully charged.
PROTECTION: Input and Outputs are fuse protected..
ADJUSTMENTS: Internal Potentiometer to set maximum output battery voltage (factory set to 14.5V).
SIZE & WEIGHT: approximately 8x4x2 inches and 3 lb.    Aluminum enclosure with mounting flange.
ENVIRONMENT: -20 to +45 °C operation
CHARGE ALGORITHMS:
All our chargers have microprocessor/Firmware-based charge algorithm. So, if you order your charger
for Lead Acid, you can always change it later, say to Lithium, by just replacing a chip.

The standard algorithm offered for Lead-Acid battery is as follows:
RAMP PHASE: The charger starts by ramping from 0 Amp to its maximum current.
BULK PHASE:  It feeds  maximum current, to battery,  until its voltage reaches ABSORB value.
ABSORB PHASE: Keeps the battery voltage at ABSORB value (about 2.45 per cell). As battery is
charged, current drops.  When current reaches 3A, it goes to PULSED EQUALIZATION.
PULSED EQUALIZATION:  for 3 minutes, 2.55V / cell is applied for 30 sec and removed for 30 sec.
COMPETE PHASE:  It stops or goes to FLOAT Mode (specify which) where 2.1V/ cell is applied.
EV DCDC Accessory Converter (Cross Charger)
T0 Charge 12 EV Accessory Battery from HV Traction Battery Pack
EVC101:  300W Switch-mode charger for small EV:
- Compact Isolated charger ordered for 24 to 48V battery of small EV (Scooter, etc).
- It provides 500W charge ( 10A for 36V battery)
- Compact (8x4x2 inches and 2 lb)
- Low Cost
- Bulk and Absorb charge cycles.