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Patent Searching and Data


Title:
RCORDING CIRCUIT
Document Type and Number:
Japanese Patent JPH0737211
Kind Code:
A
Abstract:

PURPOSE: To obtain an inexpensive recording circuit used for a magnetic recording device, connected to a magnetic recording head, having a few number of elements, and reduced in current consumption.

CONSTITUTION: This circuit is provided with a CMOS type T-flip-flop circuit 1 for converting an inputted write data signal WD into an NRZ signal and a base voltage control circuit 3 for outputting a prescribed voltage in one choice, and provided on the output side of the T-flip-flop circuit 1. Recording heads H0 and H1 are driven by a head driving circuit 4 consisting of a differential transistor couple and a constant current source 11. Bases of individual transistors Q1-Q4 of the head driving circuit 4 are connected with individual outputs of the base voltage control circuit 3.


Inventors:
SUGAWARA MITSUTOSHI
Application Number:
JP18295993A
Publication Date:
February 07, 1995
Filing Date:
July 23, 1993
Export Citation:
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Assignee:
NEC CORP
International Classes:
G11B5/09; (IPC1-7): G11B5/09
Attorney, Agent or Firm:
Wakabayashi Tadashi