.. 301 kΩ. Capacitor C 3 connects to the comparator’s IN input. Along with R 1 and R 2 , C 3 sets the oscillation frequency according to the following simplified relationships: and where t PERIOD = t LOW + t HIGH . To maximize ...
.. or bad contact). It also features a counter, which is very handy when you want to count impulses, to estimate the value of frequency or to test an interface. (This part is shown as a sketch.) The probe in Figure 1 consists of two ...
.. at a rate of 10 µsec/K. User-selected scale factors range from 10 to 640 µsec/K. The complementary, fixed-frequency square-wave outputs of a power-transformer driver IC 1 , a Maxim MAX845 drive a Halo Electronics ...
.. 1 us to 33 sec. The delay time is controlled by the current sourced by the SET pin, which programs an internal oscillator frequency, while the bias voltage on the DIV pin selects a frequency divide ratio. The LT1783 op amp circuit ...
.. employs a controlled constant on-time, valley current mode architecture to provide fast load step response, high switching frequency and low duty cycle capability. The switching frequency range is 200 kHz to 2 MHz-its phase-locked loop ...
.. to low supply voltages. It could be used as the basis for a PWM control loop, a timer, or a VCO, or as a capacitance-to-frequency converter. It’s a nifty circuit for two reasons: It uses an open-drain comparator output to make ...
.. of the circuit is the classic half-bridge. The control circuit could be realised using an IC (so fixing the operating frequency), but there is a more economical solution which consists of a selfoscillating circuit where the two ...
.. and should be readable and modifiable as desired in any case a few comments follow. #define F_CPU 2457600UL // crystal frequency #define PWM_TOP F_CPU/60 // == 40960 is TOP count for timer 0 (goes into OCR0A) These pre-compiler ...
.. the difference between peak signal levels and output voltage for three peak levels illustrates the detector’s frequency response. Because the comparator's feedback path includes op amp IC 2A , offsets and errors that IC ...
.. I wrote small Delphi application. For details, see source. First press Calibrate button to calibrate timing procedure. The frequency of your processor will be shown. Then select COM port and press Open port. At the end you can finally ...