Synchronous light emitting diode lamp string controller
First Claim
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1. A synchronous LED lamp string controller, comprisinga clock synchronous circuit for receiving a reference signal with a constant frequency, and based on the reference signal, to generate a system clock;
- a counter circuit for counting the system clock and generating a clock signal;
a control logic circuit for receiving the clock signal to generate a control signal; and
a driver circuit for receiving the control signal to drive at least a light emitting diode.
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Abstract
The present invention discloses a synchronous LED lamp string controller, comprising a clock synchronous circuit to receive a reference signal with a constant frequency, and based on which, to generate a system clock; a counter circuit to counter the system clock and generate a clock signal; a control logic circuit to receive said clock signal to generate a control signal; and a driver circuit to receive said control signal to drive at least a light emitting diode.
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Citations
10 Claims
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1. A synchronous LED lamp string controller, comprising
a clock synchronous circuit for receiving a reference signal with a constant frequency, and based on the reference signal, to generate a system clock; -
a counter circuit for counting the system clock and generating a clock signal; a control logic circuit for receiving the clock signal to generate a control signal; and a driver circuit for receiving the control signal to drive at least a light emitting diode. - View Dependent Claims (2, 3)
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4. A synchronous LED lamp string controller, comprising
a recognition circuit for receiving a reference signal with a constant frequency to carry out level shift and voltage biasing and output a recognition signal; -
a shift register for receiving and storing the recognition signal; an encoder circuit for receiving the data stored in the shift register and encoding and outputting said data; a register for receiving and storing the complete data stored in the shift register; and a driver circuit for receiving the data stored in the register to drive at least a light emitting diode. - View Dependent Claims (5, 6)
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7. A synchronous LED lamp string controller, comprising
a first control logic circuit coupled to a data input pin; - and
a second control logic circuit coupled to a data output pin; wherein the data input pin and the data output pin represent data logic H, data logic L and data logic M at predefined level, and transmit the same clock transmission data. - View Dependent Claims (8, 9)
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10. A synchronous LED lamp string controller, comprising
a first control logic circuit coupled to a data input pin; - and
a second control logic circuit coupled to a data output pin; wherein the input pin and the data output pin transmit data logic H signal, data logic L signal and clock signal at predetermined interval.
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Specification