Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
156 words
In a regulated DC to DC power supply of the type having an input bus for supplying a first predetermined DC voltage, regulator means connected to said input bus for converting said first predetermined DC voltage to a second predetermined DC voltage at an output of said regulator means, voltage feedback means connected to said output for generating a control signal to said regulator means which regulates said second predetermined DC voltage for changes having a first predetermined frequency range, and means for connecting said output to a variable load which exhibits a low frequency cyclical power change, the improvement comprising an input bus current-sensing servo means for generating a control signal to said regulator means which regulates the input current to said regulator means, thereby regulating said second DC voltage for changes having a second predetermined frequency range, said low frequency being above said first predetermined frequency range but within said second predetermined frequency range.
Claim 2
Dependent Claim
156 words
In a regulated DC to DC power supply of the type having an input bus for supplying a first predetermined DC voltage, regulator means connected to said input bus for converting said first predetermined DC voltage to a second predetermined DC voltage at an output of said regulator means, voltage feedback means connected to said output for generating a control signal to said regulator means which regulates said second predetermined DC voltage for changes having a first predetermined frequency range, and means for connecting said output to a variable load which exhibits a low frequency cyclical power change, the improvement comprising an input bus current-sensing servo means for generating a control signal to said regulator means which regulates the input current to said regulator means, thereby regulating said second DC voltage for changes having a second predetermined frequency range, said low frequency being above said first predetermined frequency range but within said second predetermined frequency range.
Claim 3
Dependent Claim
87 words
The regulated DC to DC power supply recited in claim 1 wherein said voltage feedback means comprises an operational amplifier having an output and positive and negative inputs, said positive input being connected to a source of reference voltage, said negative input being connected to said output of said regulator means, and an RC frequency compensation network connected between said output of said operational amplifier and said negative input, said RC frequency compensation network having a relatively low impedance at frequencies approaching and exceeding said low frequency.
Claim 4
Dependent Claim
136 words
The regulated DC to DC power supply recited in claim 1 wherein said input bus current-sensing servo means comprises current-sensing means connected to said input bus, an operational amplifier having an output and a negative input, said negative input being connected to said current-sensing means, and an RC frequency compensation network connected between said output of said operational amplifier and said negative input and between said output of said operational amplifier and said regulator means, that portion of said RC frequency compensation network connected between said operational amplifier output and said regulator means having a relatively high impedance at frequencies below said low frequency and that portion of said RC frequency compensation network connected between said output of said operational amplifier and said negative input having a relatively low impedance at frequencies above said low frequency.
Claim 5
Dependent Claim
245 words
The regulated DC to DC power supply recited in claim 1 wherein said voltage feedback means comprises a first operational amplifier having an output and positive and negative inputs, said positive input being connected to a source of reference voltage, said negative input being connected to said output of said regulator means, and a first RC frequency compensation network connected between said output of said first operational amplifier and said negative input, said first RC frequency compensation network having a relatively low impedance at frequencies approaching and exceeding said low frequency, and wherein said input bus current-sensing servo means comprises current-sensing means connected to said input bus, a second operational amplifier having an output and a negative input, said negative input being connected to said current-sensing means, and a second RC frequency compensation network connected between said output of said second operational amplifier and said negative input and between said output of said second operational amplifier and said regulator means, that portion of said RC frequency compensation network connected between said second operational amplifier output and said regulator means having a relatively high impedance at frequencies below said low frequency, and that portion of said RC frequency compensation network connected between said output of said second operational amplifier and said negative input having a relatively low impedance at frequencies above said low frequency, said voltage feedback means and said input bus current-sensing servo means being operative at different frequencies, thereby operating independently and without interference.
Claim 6
Dependent Claim
23 words
The regulated DC to DC power supply recited in claim 4 further comprising a capacitor connected across the output of said regulator means.