![]() Thermal overload protection prevents the device from being damaged when over driven. This device is one of the many haptic feedback drivers that Texas Instruments offers. This feature also allows the user to optimize the DRV8662 circuit for a given inductor based on the desired performance requirements.Ī typical start-up time of 1.5 ms makes the DRV8662 an ideal piezo driver for fast haptic responses. Piezo Haptics With Integrated Waveforms: DRV2605L-Q1 and DRV2700 Application Report SLOA255October 2017 Piezo Haptics With Integrated Waveforms: DRV2605L-Q1 and DRV2700 ABSTRACT The DRV2700 is a high-voltage piezo driver with an analog input. The boost converter architecture will not allow the demand on the supply current to exceed the limit set by the R EXT resistor therefore, the DRV8662 is well-suited for portable applications. It can generate a single-ended haptic waveform of up to 110V P-P amplitude from a 2.8V to 5.5V input power supply or a single cell Li+ battery. As an example, the MAX77501 is a high-efficiency driver for piezo haptic actuators and is optimized for driving up to 2♟ piezo elements. In particular, we studied the use of a virtual button on. The boost voltage is set using two external resistors, and the boost current limit is programmable via the R EXT resistor. Enables crisp haptic feedback Using as sensor and actuator Actuator feedback adjustable Low power consumption Qualified based on AEC-Q200 Operating temp. High-Efficiency Piezo Haptic Actuator Driver. haptic modalities are integrated when perceiving the intensity of the stimuli. The DRV8662 supports four GPIO-controlled gains: 28.8 dB, 34.8 dB, 38.4 dB, and 40.7 dB. The input signal can be either differential or single-ended. ![]() This versatile device is capable of driving both high-voltage and low-voltage piezo haptic actuators. The MAX11835 plays back a stored waveform using a software-controlled, fly-back boost converter in a feedback loop. The DRV8662 is a single-chip piezo haptic driver with integrated 105 V boost switch, integrated power diode, and integrated fully-differential amplifier. Power-consumption measurements were performed on various piezo actuators and high-voltage capacitors using the MAX11835 haptic actuator controller.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |