Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
101 words
A low-drop voltage regulator (20) comprising a P type power element (6) having an input terminal (2) connected to a supply source (3), an output terminal (4) connected to a load (5), and a control terminal; and an error comparator (21) having at least one input (+, -) connected to a reference voltage source (13) and to said output terminal (4), and an output connected to said control terminal; characterized by the fact that it comprises a feedback network (24) having a reactance (26) and connected between said output and said at least one input (-) of said error comparator (21).
Claim 2
Dependent Claim
30 words
A regulator as claimed in Claim 1, characterized by the fact that said feedback network (24) comprises the series connection of a feedback resistor (25) and a feedback capacitor (26).
Claim 3
Dependent Claim
27 words
A regulator as claimed in Claim 1 or 2, characterized by the fact that said error comparator comprises an operational amplifier (21) operating as a voltage amplifier.
Claim 4
Dependent Claim
63 words
A regulator as claimed in Claim 3, characterized by the fact that said operational amplifier (21) presents a non-inverting input (+) connected to said reference voltage source (13), and an inverting input (-) connected to said output terminal (4); and by the fact that said feedback network (24) is connected between the output and said inverting input (-) of said operational amplifier (21).
Claim 5
Dependent Claim
33 words
A regulator as claimed in Claim 3 or 4, characterized by the fact that it comprises one drive transistor (11) between the output of said operational amplifier (21) and said power element (6).
Claim 6
Dependent Claim
36 words
A regulator as claimed in Claim 4 or 5, characterized by the fact that it comprises a first resistive element (23) between said inverting input (-) of said operational amplifier (21) and said output terminal (4).
Claim 7
Dependent Claim
47 words
A regulator as claimed in Claim 6, characterized by the fact that it comprises a second resistive element (22) between said non-inverting input (+) of said operational amplifier (21) and said reference voltage source (13); said first and second resistive elements (23, 22) presenting the same value.
Claim 8
Dependent Claim
39 words
A regulator as claimed in any one of the foregoing Claims from 1 to 7, characterized by the fact that it comprises a low-value, nonelectrolytic capacitive element (28) connected between said output terminal (4) and a reference potential line.