音量指示器--Sound Level IndicatorThis project uses an LM3915 bar-graph IC driving two sets of ten LEDs for a 30dB range. The circuit is unique because it has an additional range of 20dB provided by an
可调频闪灯电路--Adjustable Strobe LightThis one uses a much more powerful "horse shoe" Xenon tube which produces more light. You can also control the flash rate up to about 20Hz. Do not look
单极性步进电机控制器电路--Unipolar Stepper Motor ControllerThis is a very good integrated circuit. There is no need for any external glue logic to drive the circuit, there is only 2 pins to drive the
PWM马达/灯控制器电路-PWM Motor/Light ControllerA pulse width modulator (PWM) is a device that may be used as an efficient light dimmer or DC motor speed controller. The circuit described here is a gen
PWM马达/灯控制器电路-PWM Motor/Light ControllerA pulse width modulator (PWM) is a device that may be used as an efficient light dimmer or DC motor speed controller. The circuit described here is a gen
红外线开关电路-Infra Red SwitchThis is a single channel (on / off) universal switch that may be used with any Infra Red remote control that uses wavelengths between 850-950nm.Notes: Any "button&
电池组接收机的放电电路--Discharger for Receiver Battery PacksYou may have read about cycling NiCad batteries. If not, read a little here ( Red's R/C Battery Clinic) for an excellent overview. Overch
Description This launch controller can be used with low voltage battery igniters, which fire rocket engines in model rockets such as the Estes range. These circuits are electrical, only switches and
1.1电子线路设计准则 电子线路设计者往往只考虑产品的功能,而没有将功能和电磁兼容性综合考虑,因此产品在完成其功能的同时,也产生了大量的功能性骚扰及其它骚扰。而且,不能满足敏感度要求。 电子线路的电磁
电磁炉是应用电磁感应原理对食品进行加热的。电磁炉的炉面是耐热陶瓷板,交变电流通过陶瓷板下方的线圈产生磁场,磁场内的磁力线穿过铁锅、不锈钢锅等底部时,产生涡流,令锅底迅速发热,达到加热食品的目的。电磁炉
电磁炉是应用电磁感应原理对食品进行加热的。电磁炉的炉面是耐热陶瓷板,交变电流通过陶瓷板下方的线圈产生磁场,磁场内的磁力线穿过铁锅、不锈钢锅等底部时,产生涡流,令锅底迅速发热,达到加热食品的目的。电磁炉
台积电旗下创投VTAF投资的美国LED磊晶厂BridgeLux,14日宣布成功筹募到5000万美元额外的Series D融资,并将藉此积极扩产。同时,由William D. Watkins担任CEO暨董事,前CEO Mark Swoboda转任总裁。 据台湾媒体报道
引言 GSM和蓝牙作为两种不同的无线制式,在智能手机空间非常紧凑且PCB狭小的情况下,要求在实时语音业务中同时满足收发工作,由GSM 收发子系统完成从智能终端到移动网络的话音接入服务,由蓝牙收发子系统完成从智
摘要:简要介绍了AT90CAN 28的功能特点,讲述了AT90CAN128中CAN控制器的原理及使用方法,针对所设计车型CAN总线控制系统的构成特点,制定了通信协议,并以联合制动单元为具体实例,对其设计过程进行了详细的描述,使
高速缓存(CACHE)作为内核和低速存储器之间的桥梁,基于代码和数据的时间和空间相关性,以块为单位由硬件控制器自动加载内核所需要的代码和数据。如果所有程序和数据的存取都由内核完成,基于CACHE的运行机制,内核始终能够得到存储器中最新的数据。但是当有其它可以更改存储器内容的部件存在时,例如不需要内核干预的直接数据存取(DMA)引擎,就可能出现由于CACHE的存在而导致内核或者DMA不能够得到最新数据的现象,也就是CACHE一致性的问题。