초록 ▼

A comparing detector circuit capable of operating regardless of input voltages thereto includes a first pair of transistors to which first and second input signal voltages are input for functioning as a buffer; a second pair of transistors constructing a current mirror circuit in which an input side

A comparing detector circuit capable of operating regardless of input voltages thereto includes a first pair of transistors to which first and second input signal voltages are input for functioning as a buffer; a second pair of transistors constructing a current mirror circuit in which an input side and an output side are connected to the first pair of transistors via first and second resistors, respectively; and an output transistor to which potential at the output side of the current mirror circuit is applied as an input.

대표청구항 ▼

[ What is claimed is:] [1.]1. A comparing and amplifying detector circuit comprising:first and second grounds of different potentials;first and second power supplies on said first and second grounds, respectively, said first and second power supplies being connected;a control circuit connected betwe

[ What is claimed is:] [1.]1. A comparing and amplifying detector circuit comprising:first and second grounds of different potentials;first and second power supplies on said first and second grounds, respectively, said first and second power supplies being connected;a control circuit connected between said first ground and said first power supply;first and second resistance elements for obtaining a first potential by potentially dividing a potential between a potential of said first power supply and an output potential of said control circuit;third and fourth resistance elements for obtaining a second potential by potentially dividing a potential between the potential of said first power supply and the potential of said first ground; anda voltage comparator to which said first and second potentials are applied as inputs.