CURRENT OUTPUT DRIVE CIRCUIT AND ELECTRONIC APPARATUS

CURRENT OUTPUT DRIVE CIRCUIT AND ELECTRONIC APPARATUS

PROBLEM TO BE SOLVED: To provide a current output drive circuit capable of realizing various types of flickering pattern by a relatively small scale program, and to provide an electronic apparatus. SOLUTION: Based on reference current set data stored in a control register 14 and operated logically b...

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Bibliographische Detailangaben
1. Verfasser: TACHIMORI HIROSHI
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
DECODING
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
PULSE TECHNIQUE
SEMICONDUCTOR DEVICES
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a current output drive circuit capable of realizing various types of flickering pattern by a relatively small scale program, and to provide an electronic apparatus. SOLUTION: Based on reference current set data stored in a control register 14 and operated logically by a logic circuit 13, a variable reference current IREF is output from the variable current source VIS-i in a reference current generating circuit 12. Based on a reference voltage Vref generated in the reference resistance circuit Rref of a current output DAC2-i, an error amplifier circuit 3-i controls output current from the current output DAC2-i and drives an LED1-i. COPYRIGHT: (C)2006,JPO&NCIPI