PURPOSE:To freely change a voltage division ratio by combining elements whose resistivities are changed in accordance with an electric signal to constitute a voltage dividing circuit and inputting plural kinds of detection signal independently of one another and operating a resistivity control signal ...
Variable frequency divider circuit PURPOSE: To provide an F/F+1 prescaler that is stably in operation by a low consumed current at a low power supply voltage. CONSTITUTION: The size of MOS transistors(TRs) (50, 51) for frequency division ratio switching is selected greate... 와카다히...
An improved sweep generator circuit suitable for deflection circuits in television receivers conventionally includes a condenser chargeable through a resistance to establish the sweep. A resistive voltage divider and a threshold comparator circuit are each arranged parallel to the condenser. The comparator ...
I am currently hoping to use the TPS5450 to vary a DC output from 5V to 10V. The current will increase with the voltage as the load is a fixed value. At 5V it should be approximately 1/2A and at the 10V it should be approximately 2A. I am wondering what ...
(a) and divides the result with a natural number represented by a 2nd digital data N1 and outputs a signal of the frequency corresponding to the quotient, and consists of digital frequency divider circuits 5, 7, a phase comparator circuit 8 and a voltage controlled oscillation circuit(VCO) 6...
The PLL circuit includes a variable divider which divides the VCO output by a divide ratio value provided by a frequency band select circuit, which provides the divide ratio needed to drive the phase difference between the reference and... J Sanders - US 被引量: 7发表: 2007年 VOLTAGE-CONTRO...
It is proposed according to the invention that the circuit comprises means (DET level detector and DIV frequency divider) to reduce the clock frequency CLK of the integrated circuit when the supply voltage Vcc of the circuit falls below a determined threshold for which the operation at the ...
PROBLEM TO BE SOLVED: To provide a variable-gain circuit formed on a semiconductor integrated circuit, which changes the gain exponentially against a control signal and operates even at a low voltage using a low circuit current independently of the temperature change. SOLUTION: The circuit comprises...
CONSTITUTION:Variable gain controller 21 is provided between variable frequency divider 6 and phase detector 2. Controller 21 is a variable attenuator using, for example, a variable resistance type diode, and controls the DC bias of the diode to make attenuation variable. The VCO control voltage ...
divider circuit comprised of resisters for dividing the controlling voltage, and connected between the frequency control source and the variable capacity means... 杉山刚博 被引量: 0发表: 2008年 Remote drift rate compensator for frequency standards The frequency multiplier chain and the divider operate...