difference between Constant current LED driver and Constant voltage LED driver
This page compares Constant current LED driver vs Constant voltage LED driver and mentiones difference between Constant current LED driver and Constant voltage LED driver.
Constant current LED driver
• This type of driver is used to power LEDs which require fixed output
current and voltage range is specified.
• As shown in the figure-1, constant current is 700 mA and
output voltage range is 4 to 13 V DC.
• In this LED driver, usually only one output current is mentioned in
units of Amps or milliamps along with voltage range which vary based on
wattage of LED.
Constant voltage LED driver
• This type of driver is used to power LEDs which require fixed output voltage and
maximum current is specified.
• As shown in the figure-2, constant voltage is 24V DC and
output current is 1.04Amp (maximum).
• In this LED driver, usually one stable voltage is used and not range of voltage.
• Here, current is regulated either using resistors or using internal constant
current driver within this LED module.
AC LED Driver
There is also another type of LED driver known as AC LED driver. It is no-minimum load transformer. This means it can be used to operate low-voltage halogen or incandescent bulbs also. AC LED driver is used with bulbs which already has an internal driver. This internal driver converts AC current to DC current. Hence job of AC LED driver is to register low wattage of LEDs and consecutively step down voltage to meet voltage requirement of the bulb (usually 12 or 24 volts).
What is Difference between
difference between FDM and OFDM
Difference between SC-FDMA and OFDM
Difference between SISO and MIMO
Difference between TDD and FDD
Difference between 802.11 standards viz.11-a,11-b,11-g and 11-n
OFDM vs OFDMA
CDMA vs GSM
Bluetooth vs zigbee
Fixed wimax vs mobile