LIGHT EMITTING DIODE DRIVING MODULE
First Claim
1. A light emitting diode driving module, suitable to drive a plurality of light emitting diode strings in parallel connection, wherein each of the light emitting diode strings has a first terminal and a second terminal;
- the light emitting diode driving module comprising;
a voltage converting apparatus, for producing a driving voltage at the first terminal of each the light emitting diode string according to a conduction voltage;
a conduction voltage detecting apparatus, coupled to the second terminal of each the light emitting diode string for detecting the conducting states of the light emitting diode strings and producing the conduction voltage and a plurality of enabling signals;
a reference voltage generating apparatus, for generating a first reference voltage according to the enabling signals; and
a current-adjusting apparatus, for producing a plurality of driving currents respectively flowing through each the light emitting diode string.
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Accused Products
Abstract
An LED driving module suitable to drive a plurality of LED strings in parallel connection is disclosed. The LED driving module includes a voltage converting apparatus, a conduction voltage detecting apparatus, a reference voltage generating apparatus and a current-adjusting apparatus. The voltage converting apparatus produces a driving voltage according to a conduction voltage. The conduction voltage detecting apparatus detects the conducting states of the LED strings for producing a conduction voltage and an enabling signal. The reference voltage generating apparatus generates a first reference voltage according to the enabling signal. The current-adjusting apparatus produces a plurality of driving currents according to the first reference voltage, and the driving currents flow through the LED strings.
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Citations
17 Claims
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1. A light emitting diode driving module, suitable to drive a plurality of light emitting diode strings in parallel connection, wherein each of the light emitting diode strings has a first terminal and a second terminal;
- the light emitting diode driving module comprising;
a voltage converting apparatus, for producing a driving voltage at the first terminal of each the light emitting diode string according to a conduction voltage; a conduction voltage detecting apparatus, coupled to the second terminal of each the light emitting diode string for detecting the conducting states of the light emitting diode strings and producing the conduction voltage and a plurality of enabling signals; a reference voltage generating apparatus, for generating a first reference voltage according to the enabling signals; and a current-adjusting apparatus, for producing a plurality of driving currents respectively flowing through each the light emitting diode string. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
- the light emitting diode driving module comprising;
Specification