Variable control of electronic power supplies
First Claim
1. An electronic power supply control circuit for an electronic circuit having an amplifier and at least one power supply, the amplifier being adapted to receive a raw power supply current from the power supply and an input signal from an input signal source, and to supply a corresponding amplified output signal to a load, the control circuit comprising:
- a measuring circuit for measuring an observed signal and generating a measured signal in response thereto;
a sag control circuit for receiving said measured signal and generating a sag control signal in response to said measured signal;
a reference circuit for generating a static reference signal; and
means for regulating the power supply, said regulating means receiving said sag control signal, said reference signal, and a power supply current from the power supply, and generating a regulated power supply current for the amplifier in response to said sag control signal and said reference signal, whereby as the sag control signal increases, said regulating means decreases the maximum power available to the amplifier, thereby producing increased distortion and compression in the output signal.
1 Assignment
0 Petitions
Accused Products
Abstract
A regulated power supply control system with adjustable operating point and adjustable dynamic behavior for use with electronic power supply circuits, such as musical instrument amplifiers. The control system includes a measurement circuit (20) that generates a measured signal (22) based on an observed signal (18) in an amplifier (10); a sag control circuit (24) that generates a sag signal (32) based on the measured signal (22); a referenced circuit (34) that generates a static reference signal (38); and a regulator (44) that uses the static reference signal (38) and sag signal (32) to generate a regulated power supply output (14) that is used by the amplifier (10). The sag control circuit (24) permits adjustment of the sag signal 32 by a user-operated sag magnitude control (26), sag rate control (28), and sag recovery rate control (30).
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Citations
18 Claims
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1. An electronic power supply control circuit for an electronic circuit having an amplifier and at least one power supply, the amplifier being adapted to receive a raw power supply current from the power supply and an input signal from an input signal source, and to supply a corresponding amplified output signal to a load, the control circuit comprising:
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a measuring circuit for measuring an observed signal and generating a measured signal in response thereto; a sag control circuit for receiving said measured signal and generating a sag control signal in response to said measured signal; a reference circuit for generating a static reference signal; and means for regulating the power supply, said regulating means receiving said sag control signal, said reference signal, and a power supply current from the power supply, and generating a regulated power supply current for the amplifier in response to said sag control signal and said reference signal, whereby as the sag control signal increases, said regulating means decreases the maximum power available to the amplifier, thereby producing increased distortion and compression in the output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for controlling an electronic power supply in an electronic amplifier circuit having an amplifier and at least one power supply, the amplifier being adapted to receive a power signal from at least one power supply and an input signal from an input signal source, and to generate an amplified output signal, the method comprising the steps of:
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monitoring an observed signal in the electronic amplifier circuit and generating a measured signal in response thereto; generating a sag control signal in response to the measured signal; generating a static reference signal; and regulating the power supply signal in response to the sag control signal and the static reference signal such that as the sag control signal increases, the maximum power available to the amplifier decreases, thereby producing increased distortion and compression in the output signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification