Multiregulator circuit and lamp
First Claim
1. A lamp comprising:
- a housing adapted to be removably secured to a vehicle;
a lens cover;
potting material;
a heat sink; and
, a light source comprising at least one light emitting diode attached to a circuit board, said circuit board containing a circuit for controlling current over an input voltage range, said circuit comprising;
a diode rectifier which receives said input voltage, said diode rectifier connected in series with a first of at least one adjustable three-terminal regulator;
said first of at least one adjustable three-terminal regulator configured as a voltage regulator for voltage regulation, said voltage regulation provided by a first and second resistor working as voltage divider;
said first of at least one adjustable three-terminal regulator connected in series to a second of at least one adjustable three-terminal regulator; and
, said second of at least one adjustable three terminal regulator configured as a current regulator for current regulation, said current regulation provided by a third resistor with said resistor regulating current output value.
12 Assignments
0 Petitions
Accused Products
Abstract
This invention relates to circuits for operation over a range of voltages, more particularly for a vehicle lamp circuit that provides lighting over a range of voltages. The invention provides a circuit that allows the operation of an LED array lamp over a range of voltage. This is achieved by making use of three-terminal adjustable regulators. One of the three-terminal regulators is configured as a voltage regulator. It regulates the voltage by a connection to a voltage divider. A second three-terminal regulator is connected to the voltage regulator. The second regulator is configured to be a current regulator with the current set by one resistor. This circuit can be further modified with additional adjustable three-terminal regulators to increase in functionality.
27 Citations
39 Claims
-
1. A lamp comprising:
-
a housing adapted to be removably secured to a vehicle;
a lens cover;
potting material;
a heat sink; and
,a light source comprising at least one light emitting diode attached to a circuit board, said circuit board containing a circuit for controlling current over an input voltage range, said circuit comprising;
a diode rectifier which receives said input voltage, said diode rectifier connected in series with a first of at least one adjustable three-terminal regulator;
said first of at least one adjustable three-terminal regulator configured as a voltage regulator for voltage regulation, said voltage regulation provided by a first and second resistor working as voltage divider;
said first of at least one adjustable three-terminal regulator connected in series to a second of at least one adjustable three-terminal regulator; and
,said second of at least one adjustable three terminal regulator configured as a current regulator for current regulation, said current regulation provided by a third resistor with said resistor regulating current output value. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A circuit for controlling current over a voltage range, comprising:
-
a plurality of diode rectifiers which receive input voltage, said diode rectifiers connected in series with a first of at least one adjustable three-terminal regulator;
said first of at least one adjustable three-terminal regulator configured as a voltage regulator for voltage regulation, said voltage regulation provided by a first and second resistor working as voltage divider;
said first of at least one adjustable three-terminal regulator connected in series to a second of at least one adjustable three-terminal regulator; and
,said second of at least one adjustable three-terminal regulator configured as a first current regulator for current regulation, said current regulation provided by a third resistor setting current output value;
a third of at least one adjustable three-terminal regulator configured as a second current regulator for current regulation connected in series with said voltage regulator, said current regulation provided by a fourth resistor setting the current output value, a transistor switch connected to said plurality of diode rectifiers and operatively connected in series to a gate of a P-channel MOSFET; and
,said P-channel MOSFET shunting a fifth resistor from said circuit when activated by current from said transistor switch, said fifth resistor connected in series with said fourth resistor. - View Dependent Claims (8, 9, 10, 11, 12)
-
-
13. A lamp comprising:
-
a housing adapted to be removably secured to a vehicle;
a lens cover;
a heat sink;
potting material; and
,a light source comprising a combination of light emitting diode arrays attached to a circuit board, said circuit board containing a circuit for controlling current over an input voltage range, said circuit comprising;
a plurality of diode rectifiers which receive input voltage, said diode rectifiers connected in series with a first of at least one adjustable three-terminal regulator;
said first of at least one adjustable three-terminal regulator configured as a voltage regulator for voltage regulation, said voltage regulation provided by a first and second resistor working as voltage divider;
said first of at least one adjustable three-terminal regulator connected in series to a second of at least one adjustable three-terminal regulator; and
,said second of at least one adjustable three-termninal regulator configured as a first current regulator for current regulation, said current regulation provided by a third resistor setting current output value;
a third of at least one adjustable three-terminal regulator configured as a second current regulator for current regulation connected in series with said voltage regulator, said current regulation provided by asfourth resistor setting current output value;
a transistor switch connected to said plurality of diode rectifiers and operatively connected in series to a gate of a P-channel MOSFET; and
,said P-channel MOSFET shunting a fifth resistor from said circuit when activated by current from said transistor switch, said fifth resistor connected in series with said fourth resistor. - View Dependent Claims (14, 15, 16, 17, 18, 19)
-
-
20. A lamp comprising:
-
a housing;
at least one light source;
a lens adjacent to said at least one light source; and
a circuit operatively connected to said at least one light source, said circuit comprising at least one diode rectifier, a plurality of adjustable three-terminal regulators, and a plurality of resistors, wherein one of said plurality of adjustable three-terminal regulators is configured as a first voltage regulator and one of said plurality of adjustable three-terminal regulators is configured as a first current regulator. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
-
Specification