Very-High current gallium nitride transconductance amplifiers

极高电流氮化镓跨导放大器

• 批准号: 500718-2016
• 负责人: Saavedra, Carlos
• 金额: $ 1.96万
• 依托单位: Queen's University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=618745
• 关键词: Very; current; gallium; nitride; transconductance

The objective of this CRD project between Queen's University and Guildline Instruments is to develop technology for next-generation transconductance amplifiers (TCAs) using gallium nitride (GaN) transistors to deliver 100 Amps of output current from DC to 1 MHz. High-current TCAs are used by power companies to calibrate their power flow meters. Arc welding equipment is another important market for TCAs where high currents are needed to locally melt the materials to be bonded. And particle accelerators such as the Large Hadron Collider use TCAs to generate the current pulses that produce the magnetic fields that propel subatomic particles to light speed. High-current TCAs available on the market today use a parallel arrangement of up to twenty smaller TCA 'cells' because silicon transistors are limited in the amount output current they can deliver at high frequencies. GaN transistors can source very high drain currents up to gigahertz frequencies while simultaneously exhibiting high breakdown voltages as a result of the semiconductor's high electron mobility and high energy bandgap. GaN offers the potential to significantly reduce the number of parallel TCA cells needed to build a 100 Amp system from twenty to about five. This represents a significant improvement in the cost, size and power consumption of the unit which will, in turn, place Guildline Instruments in a very good position to lead in a highly competitive market that serves national research laboratories, national metrology institutes, militaries, nuclear power plants, aerospace, and companies in the electrical and power industry. Through this project, three students will be trained: one doctoral and two undergraduates. The students will gain valuable skills in microelectronic circuit design, high-power techniques, test and measurement.

皇后大学和公会工具之间此CRD项目的目的是使用硝基壳（GAN）晶体管开发下一代跨导宽放大器（TCA）的技术，以从DC到1 MHz提供100安培的输出电流。电力公司使用高电流的TCA来校准其电源流量计。电弧焊接设备是TCA的另一个重要市场，在该TCA中，需要高电流来本地融化要粘合的材料。粒子加速器（例如大型强子对撞机）使用TCAS生成电流脉冲，从而产生磁场，这些磁场将亚原子颗粒推向光速。当今市场上可用的高电流TCA使用最多二十个较小的TCA“细胞”的平行布置，因为硅晶体管的量限制为高频输出的量输出电流。 GAN晶体管可以将非常高的排水电流源为Gigahertz频率，同时由于半导体的高电子迁移率和高能量带隙而表现出高击穿电压。 GAN提供了显着减少构建100安培系统所需的平行TCA单元数量的潜力。这代表了该单位的成本，规模和功耗的重大改善，这反过来又将公会工具处于非常好的位置，以领导高度竞争激烈的市场，该市场为国家研究实验室，国家计量学院，军队，核事物，核事物，核事业提供服务。电厂，航空航天和电力行业的公司。通过这个项目，将对三名学生进行培训：一名博士学位和两名本科生。学生将获得微电子电路设计，高功率技术，测试和测量的宝贵技能。