Back to results
US 2002/0158679 A1Published application
Voltage control circuit
OwnerTakaaki Matsuoinventor
Life of this patent
Estimating the term…
Abstract
In an output short-circuiting protecting circuit, a current flows in advance in a current sense resistor that is connected to a current source circuit and monitors the current. When a desired short-circuiting current flows, a voltage for operating the protecting circuit is developed in the current sense resistor, and the current is adjusted to an arbitrary short-circuiting current.
Claims4
A voltage control circuit comprising:
- a current monitor circuit connected in series to a transistor and a resistor;
- an output voltage control circuit that connects said current monitor circuit to an input terminal and an output terminal in parallel;
- and
- a current source circuit connected to said resistor.
1 more element
A voltage control circuit comprising:
- a current monitor circuit connected in series to a transistor and a resistor;
- an output voltage control circuit that connects said current monitor circuit to an input terminal and an output terminal in parallel;
- an output short-circuiting protecting circuit for said output voltage control circuit;
- and
- a current source circuit connected to said resistor,
- wherein said current source circuit applies a voltage for operating said output short-circuiting protecting circuit to said resistor.
3 more elements
A circuit in which a resistor is disposed in a current path, and a voltage drop developed by said resistor is detected to conduct a current limit.
Dependencies are inferred from the claim text.