NEW DATABASE - 350 MILLION DATASHEETS FROM 8500 MANUFACTURERS
NEW DATABASE - 350 MILLION DATASHEETS FROM 8500 MANUFACTURERS
| Catalog Datasheet Results | Type | Document Tags |
| Abstract: controller integrated circuit. T TE = T/2 +VS PRINCIPLES OF THE PWM MOTOR DRIVE - - TO THE , motor which has high armature inductance will require a lower PWM drive frequency in order to develop , PWM motor drive at the highest practical frequency, the motor should have an electrical time , principles, related to motor specifications and drive frequency, are discussed. 0V - - TO Finally , to integral HP ranges. The PM motor, however, does have definite advantages for PWM drive as will ... | Original |
6 pages, |
SMMD AN1221 Variable speed drive principles dc motor control using a single switch Electric motor DC PWM MOTOR SPEED CONTROL TACHOMETER 1.5 hp DC motor speed control pwm pulse generator variable duty cycle working principle of servo motor NE5560 1.5 hp DC motor speed control using pwm AN1221 abstract |
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| Abstract: circuit. NS This is negative sense input to the PWM control circuit. PS This is positive sense input to the PWM control circuit , and the oscillator frequency is increased in small steps on oscillator cycles until the PWM output , of the frequency the oscillator frequency will rise exponentially. Functional Block Diagram +Vin Regulator Vdd Vdd UVLO Reference Vref AGND Variable Frequency and Duty ... | Original |
5 pages, |
1uF 400V capacitor 1N4007 VN2460 VN2460N8 400hz sine oscillator 100uF 450v capacitor electrolytic HV9904 50hz to 60hz converter circuit diagram voltage regulator mosfet 1,2 400V voltage regulator PWM AC 50HZ 400V linear regulator rectified constant power led driver HV9904 abstract |
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| Abstract: drive circuit. NS This is negative sense input to the PWM control circuit. PS This is positive sense input to the PWM control circuit , and the oscillator frequency is increased in small steps on oscillator cycles until the PWM output , of the frequency the oscillator frequency will rise exponentially. Functional Block Diagram +Vin Regulator Vdd Vdd UVLO Reference Vref AGND Variable Frequency and Duty ... | Original |
5 pages, |
1uF 400V capacitor Constant Current Regulator Circuits currrent to voltage converter HV9904 HV9904LG HV9904P HV9904X IRFBC30AS 100uF 450v capacitor electrolytic MURS120T3 power supply 400v circuit diagram 400hz sine oscillator HV9904 abstract |
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| Abstract: typical frequency range of the PWM signal is 1kHz to 10kHz. The magnitude of the PWM signal should be , filtered PWM signal can be considered as an adjustable DC voltage. It can be used to replace the variable , LEDs from a 5V Supply · 36V Rugged Bipolar Switch · Fast 1.2MHz Switching Frequency · Uses Tiny 1mm , SOT-25 DESCRIPTION The LM1937 LM1937 is a step-up DC/DC converter specifically designed to drive white LEDs with a constant current. The device can drive two, three or four LEDs in series from a Li-Ion cell. ... | Original |
6 pages, |
lm1937sf LM1937 block diagram of schottky diode capacitor selection for led circuit 22mH inductor LM1937 abstract |
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| Abstract: Modulator (PWM) modules (see Figure 10-1). Each outputs a variable duty cycle pulse at a fixed frequency. These outputs may be used to drive motors that require an unfiltered PWM waveform for optimal efficiency , 10-1. PWM Block Diagram 10-1 intelo PULSE WIDTH MODULATOR 10.1. PWM FUNCTIONAL OVERVIEW The PWM , 10-1 lists sample output frequencies. Table 10-1. PWM Output Frequencies IOC2.2 XTAL1 Frequency (Fosc , Note that PWMjc.CONTROL is an 8-bit value and F0sc is the XTAL1 frequency, in MHz. PWM Period (in ... | OCR Scan |
8 pages, |
PWM TO ANALOG OUTPUT 8XC196KC/KD A0120-BO 8XC196KC/KD abstract |
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| Abstract: ballast resistors. The LP3303 LP3303 implements a constant frequency 1.0MHz PWM control scheme. The high frequency PWM operation also saves board space by reducing external component sizes. To improve efficiency , with high efficiency. Ordering Information High Efficiency: 86% 1.2MHzFixed-Frequency PWM , applying a PWM signal to CTRL pin. The internal soft-start and wide range dimming frequency from 100Hz to , depends on the frequency of PWM signal. For smaller output voltage ripple ( ... | Original |
7 pages, |
marking B6 sot23 blacklight LP3303 LP3303 abstract |
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| Abstract: , CLCK and CPWM = 0V and all other signal pins open circuit. 2 The 1V minimum represents 100% PWM drive and 2V represents 0% PWM drive. 3 This voltage is determined by an internal resistor network of , has an external capacitor attached to set the PWM frequency for the Phase drive outputs. A capacitor , ZXBM200x is a series of 2-phase, DC brushless motor pre-drivers with PWM variable speed control suitable , A 50 62 75 A C PWM Discharge Current I PWMC I PWMD PWM Frequency F PWM ... | Original |
8 pages, |
ZXBM2003 cl-ck FZT1053A FZT851 MSOP10 sot23-6 mosfet ZXBM2001 ZXBM2001X10TA ZXBM2002 3 pin fan speed control using pwm JEDEC MO-187 Variation BA ZXBM2001 abstract |
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| Abstract: variable duty cycle. PWM SINE Controller This circuit block compares the sinewaves at SINEA and SINEB to , FEATURES The ML4423 ML4423 provides the PWM sinewave drive signals necessary for controlling three phase AC , s Low distortion PWM sinewave drive s Eliminates run capacitors in PSC motors s Coast , :1, providing 15Hz to 150Hz control. The output variable frequency AC voltages are sensed and fed , ground sets the PWM triangle frequency in conjunction with the external resistor RREF. 2 FB C ... | Original |
10 pages, |
INT100 2N3904 144V DC Motor Speed Controller make three phase sine wave generator variable frequency drive for ac motors Three phase sine wave oscillator MUR150 three phase sine wave pwm circuit 3 phase sine wave pwm circuit irf740 application note IRF740 inverter 3 phase sinewave generator ML4423 ML4423 ML4423 abstract |
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| Abstract: asynchronous with the sinewave frequency. Thus current limit is fixed-period with variable duty cycle. PWM , FEATURES The ML4423 ML4423 provides the PWM sinewave drive signals necessary for controlling three phase AC , s Low distortion PWM sinewave drive s Eliminates run capacitors in PSC motors s Coast , :1, providing 15Hz to 150Hz control. The output variable frequency AC voltages are sensed and fed , setting the PWM frequency in conjunction with CT. 9 RDT An external resistor to ground sets the ... | Original |
10 pages, |
three phase sine wave pwm circuit 3 phase sinewave generator drive Controller PWM 1kw transistors BC 457 12v 1KW motor ML4423 160kw induction motor variable frequency drive for ac motors inverter Controller PWM 1kw IR2118 500w pwm DC motor controller sine wave inverter 500w circuit ML4423 abstract |
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| Abstract: provides the complete power conversion function for a 7.5hp (5.5kW) variable voltage, variable frequency , ), 3-phase, variable-frequency, variable voltage controlled by externally generated user provided PWM , from the power circuit. The IRPT4052C IRPT4052C offers several benefits to the drive manufacturer as listed , the input PWM control signal to pass to the input opto-isolators of the gate drive circuits. The , ), the latch inhibits the PWM gate, deactivating the gate drive circuits and shutting off the inverter. ... | Original |
12 pages, |
5.5KW induction motor 3 phase inverter schematic diagram 1.5 hp DC motor speed control using pwm schematic diagram induction heating NTC selection for DC Capacitor NTC 5D inverter 3 phase igbt 380v snubber FOR 3PHASE BRIDGE RECTIFIER controller for PWM with IGBT DC to AC 3 phase Inverter Circuits Undervoltage Relay 380v IRPT4052 IRPT4052 abstract |
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| Abstract | Saved from | Date Saved | File Size | Type | Download |
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| (PWM) drive systems. The winding resistance, R M , is purely an interfer- ence variable because -loop variable voltage control with a current limiting circuit constitutes the simplest way of varying speed window lifts. The circuit shown in figure 3 is an example of a variable speed motor with digital that in Figure 3, but using PWM. Figure 6: Equivalent circuit to that in Figure 4, but using PWM processed. Figure 9: Operating principle of the circuit of figure 8 transferred to a PWM arrangement www.datasheetarchive.com/files/stmicroelectronics/stonline/books/ascii/docs/1656-v3.htm |
STMicroelectronics | 25/05/2000 | 23.41 Kb | HTM | 1656-v3.htm |
| -width modulation (PWM) drive systems. The winding resistance, R M , is purely an interfer- ence variable frequency can be converted back into a DC signal in an f/V converter. APPLICATION NOTE 11/16 PWM circuit , wipers and power window lifts. The circuit shown in figure 3 is an example of a variable speed motor in Figure 3, but using PWM. Figure 6: Equivalent circuit to that in Figure 4, but using PWM , expanded to include a bridge. Figure 16: The principle of V-I control transferred to a PWM motor circuit www.datasheetarchive.com/files/stmicroelectronics/stonline/books/ascii/docs/1656.htm |
STMicroelectronics | 20/10/2000 | 24.08 Kb | HTM | 1656.htm |
| -width modulation (PWM) drive systems. The winding resistance, R M , is purely an interfer- ence variable because . Open-loop variable voltage control with a current limiting circuit constitutes the simplest way of : Circuit for driving a variable-speed motor. Where the enable function is needed, the type L6242 L6242 L6242 L6242 can be circuit to that in Figure 3, but using PWM. Figure 6: Equivalent circuit to that in Figure 4, but using of V-I control transferred to a PWM motor circuit: complexity is increased signifi- cantly www.datasheetarchive.com/files/stmicroelectronics/stonline/books/ascii/docs/1656-v1.htm |
STMicroelectronics | 02/04/1999 | 21.62 Kb | HTM | 1656-v1.htm |
| -width modulation (PWM) drive systems. The winding resistance, R M , is purely an interfer- ence variable because . Open-loop variable voltage control with a current limiting circuit constitutes the simplest way of : Circuit for driving a variable-speed motor. Where the enable function is needed, the type L6242 L6242 L6242 L6242 can be circuit to that in Figure 3, but using PWM. Figure 6: Equivalent circuit to that in Figure 4, but using of V-I control transferred to a PWM motor circuit: complexity is increased signifi- cantly www.datasheetarchive.com/files/stmicroelectronics/stonline/books/ascii/docs/1656-v2.htm |
STMicroelectronics | 14/06/1999 | 21.58 Kb | HTM | 1656-v2.htm |
| /MUXes/Crosspoints Switching Regulation Timing Circuits Video ICs Voltage References ISL6566A ISL6566A ISL6566A ISL6566A Three-Phase Buck PWM Variable Gate Drive Bias: 5V to 12V Microprocessor Voltage Identification Inputs Up to a 6-Bit DAC Description Key Features Parametric Data Application Diagrams Related Devices Ordering -STD-020 -STD-020 -STD-020 -STD-020 SMD = Standard Microcircuit Drawing Description The ISL6566A ISL6566A ISL6566A ISL6566A three-phase PWM control IC MOSFET drivers into the controller IC marks a departure from the separate PWM controller and driver www.datasheetarchive.com/files/intersil/device_pages/device_isl6566a.html |
Intersil | 07/09/2006 | 37.66 Kb | HTML | device_isl6566a.html |
| /MUXes/Crosspoints Switching Regulation Timing Circuits Video ICs Voltage References ISL6566 ISL6566 ISL6566 ISL6566 Three-Phase Buck PWM Accurate Load Line Programming Uses Loss-Less Inductor DCR Current Sampling Variable Gate Drive Bias: 5 Docs Description Key Features Parametric Data Application Diagrams Related Devices The ISL6566 ISL6566 ISL6566 ISL6566 three-phase PWM control IC provides a precision voltage regulation system for advanced separate PWM controller and driver configuration of previous multiphase product families. By reducing the www.datasheetarchive.com/files/intersil/device_pages/device_isl6566.html |
Intersil | 07/09/2006 | 42.07 Kb | HTML | device_isl6566.html |
| /MUXes/Crosspoints Switching Regulation Timing Circuits Video ICs Voltage References ISL6568 ISL6568 ISL6568 ISL6568 Two-Phase Buck PWM -Less Inductor DCR Current Sampling Variable Gate Drive Bias: 5V to 12V Microprocessor Voltage Identification Docs Description Key Features Parametric Data Application Diagrams Related Devices -STD-020 -STD-020 -STD-020 -STD-020 SMD = Standard Microcircuit Drawing Description The ISL6568 ISL6568 ISL6568 ISL6568 two-phase PWM control IC MOSFET drivers into the controller IC marks a departure from the separate PWM controller and driver www.datasheetarchive.com/files/intersil/device_pages/device_isl6568.html |
Intersil | 07/09/2006 | 41.84 Kb | HTML | device_isl6568.html |
| preferred technique in most variable-speed induction mo- tor drive applications. This technique is known as change the stator voltage frequency it is necessary to use a variable frequency converter. The variable . Rectifier Inverter Motor AC line Filter DC Variable Frequency Converter Output (variable voltage & frequency) Fig . 3 - Variable Frequency Converter f = constant [ AN1112 AN1112 AN1112 AN1112 - APPLICATION NOTE 2/ 22 The variable , the 3 square waves are AND'ed with a high frequency PWM whose duty cycle is managed by the Triac www.datasheetarchive.com/files/stmicroelectronics/stonline/books/ascii/docs/6416-v2.htm |
STMicroelectronics | 14/06/1999 | 19.27 Kb | HTM | 6416-v2.htm |
| preferred technique in most variable-speed induction mo- tor drive applications. This technique is known as change the stator voltage frequency it is necessary to use a variable frequency converter. The variable . Rectifier Inverter Motor AC line Filter DC Variable Frequency Converter Output (variable voltage & frequency) Fig . 3 - Variable Frequency Converter f = constant [ AN1112 AN1112 AN1112 AN1112 - APPLICATION NOTE 2/ 22 The variable , the 3 square waves are AND'ed with a high frequency PWM whose duty cycle is managed by the Triac www.datasheetarchive.com/files/stmicroelectronics/stonline/books/ascii/docs/6416-v1.htm |
STMicroelectronics | 02/04/1999 | 19.31 Kb | HTM | 6416-v1.htm |
| is the preferred technique in most variable-speed induction mo- tor drive applications. This requested magnetic flux. In order to change the stator voltage frequency it is necessary to use a variable frequency converter. The variable frequency converter, which acts as an interface between the utility power basis at any frequency. Rectifier Inverter Motor AC line Filter DC Variable Frequency Converter Output (variable voltage & frequency) Fig . 3 - Variable Frequency Converter f = constant [ AN www.datasheetarchive.com/files/stmicroelectronics/stonline/books/ascii/docs/6416.htm |
STMicroelectronics | 20/10/2000 | 22.07 Kb | HTM | 6416.htm |