Abstract: A voltage control circuit is provided. The voltage control circuit comprises a control voltage source, a current generating unit, and an output voltage generating unit. The control voltage source inputs a single end control voltage. The current generating unit coupled to the control voltage source and a ground generates a first current according to the single end control voltage. The output voltage generating unit coupled to the current generating unit, receives a reference voltage, and generates a first output voltage and a second output voltage according to the first current and the reference voltage. A value of the first output voltage is greater than a value of the second output voltage.

Abstract: A method for arranging electronic elements is provided. The method is suitable for a set of N electronic elements in which N is an odd number. The set of N electronic elements include a first electronic element subset and a second electronic element subset. The electronic elements of the first electronic element subset are arranged according a first predetermined method and the electronic elements of the second electronic element subset are arranged according to a second predetermined method, wherein the second electronic element subset is adjacent to the first electronic element subset.

Abstract: An automatic-gain control circuit includes a variable-gain amplifier, a peak-detecting circuit, and an adjustable charge/discharge circuit. The variable-gain amplifier receives an input signal and adjusts the input signal based on a gain-factor control signal for generating a corresponding output signal. The peak-detecting circuit is coupled to the variable-gain amplifier for generating a comparing signal according to a reference signal and the output signal. The adjustable charge/discharge circuit is coupled to the peak-detecting circuit and the variable-gain amplifier for outputting a charge current or a discharge current based on the comparing signal, thereby generating the gain-factor control signal. The ratio between the charge current and the discharge current is adjustable.

Abstract: A method for arranging electronic elements is provided. The method is suitable for a set of N electronic elements in which N is an odd number. The set of N electronic elements include a first electronic element subset and a second electronic element subset. The electronic elements of the first electronic element subset are arranged according a first predetermined method and the electronic elements of the second electronic element subset are arranged according to a second predetermined method, wherein the second electronic element subset is adjacent to the first electronic element subset.

Abstract: A voltage control circuit is provided. The voltage control circuit comprises a control voltage source, a current generating unit, and an output voltage generating unit. The control voltage source inputs a single end control voltage. The current generating unit coupled to the control voltage source and a ground generates a first current according to the single end control voltage. The output voltage generating unit coupled to the current generating unit, receives a reference voltage, and generates a first output voltage and a second output voltage according to the first current and the reference voltage. A value of the first output voltage is greater than a value of the second output voltage.

Abstract: An automatic-gain control circuit includes a variable-gain amplifier, a peak-detecting circuit, and an adjustable charge/discharge circuit. The variable-gain amplifier receives an input signal and adjusts the input signal based on a gain-factor control signal for generating a corresponding output signal. The peak-detecting circuit is coupled to the variable-gain amplifier for generating a comparing signal according to a reference signal and the output signal. The adjustable charge/discharge circuit is coupled to the peak-detecting circuit and the variable-gain amplifier for outputting a charge current or a discharge current based on the comparing signal, thereby generating the gain-factor control signal. The ratio between the charge current and the discharge current is adjustable.