[introduction] in electronic circuit we often need to use negative tension, often need to build a negative voltage to him when use carry is put e.g. us. Below simple with 5V voltage is a circuit that says him to negative voltage 5V. The principle of generation circuit graph of negative voltage In electronic circuit we often need to use negative tension, often need to build a negative voltage to him when use carry is put e.g. us. Below…
[introduction] whether can the power MOS canal on bat last secure job, it is the architect’s afraidest problem. Scamper machine, using using bad, indescribable MOS to be in charge of with respect to scamper, the engineer encounters these is to be afraid of again really hate again, where can you be to give an issue after all? All these is concerned with SOA actually. We know the MOSFET in switch power source, IGBT is most core also is the…
[introduction] in home appliance application, the mainest is efficient and energy-saving, three-phase is not had because have efficiency,brushing dc machine is tall, size is small advantage, be in by wide application etc of home appliance equipment in a lot of application. Besides, because return device of will mechanical inverting to replace electronic commutator, three-phase is not had brush electric machinery to be thought reliability is higher than before then. In home appliance application, the mainest is efficient and energy-saving,…
[introduction] relay is parts of an apparatus of control of a kind of electron, apply in automata circuit normally. Actually it is a kind when go controlling bigger electric current with lesser electric current“Recloser ” . Relay is parts of an apparatus of control of a kind of electron, apply in automata circuit normally. Actually it is a kind when go controlling bigger electric current with lesser electric current“Recloser ” . Accordingly, the effect such as self-adjusting, safe…
[introduction] starting electronic facility (like switch power source (SMPS) or inverter) when, the instantaneous that the meeting in equipment is worth through having a height is unusual electric current. This kind of electric current is called excitation current, if do not have protective circuit, it may destroy semiconductor device or the service life that affect flowing capacitor. Starting electronic facility (like switch power source (SMPS) or inverter) when, the instantaneous that the meeting in equipment is worth through having…
[introduction] enlarge circuit is converter of a kind of energy, it creates energy impossibly. Crystal dynatron is to use the little change of base electric current to control collector electric current to produce bigger change, valve and field effect canal are to use the little change of grid voltage to control plate electric current to produce bigger change, accordingly, field effect canal and valve are voltage control parts of an apparatus, and transistor is voltaic control parts of an apparatus….
[introduction] (in July 2019, chinese Shenzhen) Cheng Sairui achieves beautiful performance again in environmental sensor domain, make more healthy, more efficient environment for people. This year on July 30 – the 2019 eleventh that held on August 1 on exposition of net of couplet of Shenzhen international content, regard environmental sensor as the expert of the domain, cheng Sairui announces to roll out SCD40—— first bulk is 1 cubic metre only centimeter miniature carbon dioxide and sensor of temperature and…
[introduction] the domain is designed in telegraphic industry and microwave circuit, the end that uses MOS generally to be in charge of the Fonda that controls impulse current to be started to voltaic delay. MOS canal has guide an impedance Rds_on is low with the characteristic with simple drive, in all round add a few yuan parts of an apparatus can make the slow circuit that start. Although circuit is simpler, but the ability after the relevant switch that only…
[introduction] September 2019 18-20 day, shanghai new international reads extensively the center is about to greet LED of international of the 16th Shanghai to exhibit (Shanghai of LED CHINA 2019 stands) . As this year the autumn most of dazzle cruel exhibit one of meetings, besides the “ that original the same term holds label of advertisement of international of the 18th Shanghai exhibits ” , “ dozenth a sign of Shanghai international number exhibit ” , this LED CHINA…
[introduction] the content that how many there are to design ” about “ADC bumper on the network had you examined? The answer is more than 4 million, find the content that we need very hard in so many bibliographical reference. Collect a system to design an engineer to most imitate and mixture signal data for, this may not be very accident, because the design does not have amortize modulus converter (the exterior front of ADC) needs to have patience and…