US 6,449,427 B1 · Loading drive system

Abstract

Upon receipt of a reference voltage signal Vi and a multiplicity of logic control signals L1 and L2, the loading drive system converts the signals received into a first control voltage Vi1 and a second control voltage Vi2 in such that the voltage difference between the two logic control signals L1 and L2 represents the reference voltage signal, and the polarity of the difference represents the logic control signals. When the first and the second control voltages Vi1 and Vi2 are below a predetermined level, the one lower than the predetermined level is converted to zero Volt, and then the differences Vi1−Vi2 and Vi2−Vi1 are formed to define a first and a second output voltages, Vo1 and Vo2, respectively. Thus, the logic control signals and the reference voltage signal can be supplied from the controller to the loading driver by a fewer number of signal lines, and so are input and output terminals or pins associated with the signals.

Claims16

Dependent claims

A loading drive system comprising:

a control section for converting a set of given reference voltage signal and a multiplicity of logic control signals into a set of first control voltage and a second control voltage such that the difference between said first and second control voltages represents said reference voltage signal and the polarity of said difference represents a combination of said logic control signals;
a loading driver for performing operations, upon receipt of said first and second control voltages from said control section, to generate a first output voltage by subtracting said second control voltage from said first control voltage and a second output voltage by subtracting said first control voltage from said second control voltage;
and
said loading drive system outputting said first and second output voltages of said loading driver as the outputs of the loading drive system.

1 more element

A loading drive system comprising:

a control section for converting a set of given reference voltage signal and a multiplicity of logic control signals into a set of first control voltage and a second control voltage such that the difference between said first and second control voltages represents said reference voltage signal and the polarity of said difference represents a combination of said logic control signals;
a loading driver for performing operations, upon receipt of said first and second control voltages from said control section, to generate an output voltage by subtracting said first voltage from said second voltage or by subtracting said second voltage from said first voltage;
and
said loading drive system outputting said output voltages of said loading driver as the outputs of the loading drive system.

1 more element

A drive system comprising:

a control section for converting a set of given reference voltage signal and a multiplicity of logic control signals into a set of a first control voltage and a second control voltage such that the difference between said first and second control voltages represents said reference voltage signal and the polarity of said difference represents a combination of said logic control signals;
a driver for performing operations, upon receipt of said first and second control voltages from said control section, to generate a first output voltage by subtracting said second control voltage from said first control voltage and a second output voltage by subtracting said first control voltage from said second control voltage;
and
said drive system outputting said first and second output voltages of said driver as the outputs of the drive system.

1 more element

A drive system comprising:

a control section for converting a set of given reference voltage signal and a multiplicity of logic control signals into a set of a first control voltage and a second control voltage such that the difference between said first and second control voltages represents said reference voltage signal and the polarity of said difference represents a combination of said logic control signals;
a driver for performing operations, upon receipt of said first and second control voltages from said control section, to generate a first output voltage by subtracting said second control voltage from said first control voltage and a second output voltage by subtracting said first control voltage from said second control voltage;
an electric motor;
and
said drive system driving said electric motor by said first and second output voltages of said driver.

2 more elements

Dependencies are inferred from the claim text.

Loading drive system

Life of this patent

Loading drive system

Life of this patent

Abstract

Claims16