aBy averaging the voltage across one inductor during one witching period in steady state the same relationship can be obtained between the input dc voltage VDC and the average dc-ink voltage Vin as in (1). 通过平均为电压横跨一台感应器在一个有魅力的期间在稳定同一个关系可以得到在输入直流电压...
Neglecting the voltage drop across the synchronous rectifier, the downslope of the inductor current for a buck converter is given by: This current goes through current-sense resistor, RS. The voltage across RS is measured and amplified with a gain of 34.5 by the CSA (see Figure 1). If we...
Neglecting the voltage drop across the synchronous rectifier, the downslope of the inductor current for a buck converter is given by: This current goes through current-sense resistor, RS. The voltage across RS is measured and amplified with a gain of 34.5 by the CSA (see Figure...
The average current detecting circuit has an average voltage detecting circuit and a voltage-current converting circuit. The average voltage detecting circuit generates a voltage across a detecting resistor by letting an inductor current flowing through an output inductor of the power converter flowing ...
10a [131,132,134] involves the insertion of a current sensing circuit on the processor's power supply line, and the corresponding voltage drop across the sensing circuit causes the flow of current which is measured and subjected to timing and signature analysis. In the configuration in Fig. ...
The voltage across current sense resistor Rs represents actual inductor current. The difference, or current error, is amplified and compared to a large amplitude sawtooth ( oscillator ramp) at the PWM comparator inputs. The gain-bandwidth characteristic of the current loop can be tailored for ...
During start-up when VIN is higher than VOUT, the ISO FET between VP and SW pin will limit the current across the inductor. This current will increase linearly as the VIN and VOUT delta decreases. When VOUT is higher than VIN, TPS61376 will regulate the input average current programmed ...
The voltage across current sense resistor R, represents actual inductor current. The difference, or current error, is amplified and compared to a large amplitude sawtooth (oscil- lator ramp) at the PWM comparator inputs. The gain-bandwidth characteristic of the cur- rent loop can be tailored ...
While the switch is off, Vour is across the output inductor. Any other winding on the inductor will have a voltage proportional to Vour by the turns Figure 3 IOFF Generation using Second Inductor Winding ratio of the two windings. The sense winding recti- fier drop cancels the output ...
Synchronizing multiple UC3886 PWM controllers can be implemented using the UC3803 circuit as A simple but important fact must be under- stood up front; the load current of the Buck regulator is not the same as the inductor cur- rent of the Buck regulator. The load current is made up of ...