Tohoku Electronic Industrial Co., Ltd.
Tohoku Electronic Industrial Co., Ltd.
In-house manufactured products related to drivers:
CW Laser Diode Driver TLA-514 (New product)
CW LD Driver TLA-514
Features
Universally usable within the voltage and current specification range.
Compact and ideal for built-in use
Semi-customizable
Specifications
Input Voltage:
LD part: 1V~14V
Control part: Within 12V±10% (AC adapter)
Output Current: 0~15A
LD Current Setting: 0.00A~15.00A (0.01A step)
LD Control: ACC method
Communication Method: RS232C
LD Control Software included
Dimensions: 74(W)×27.4(H)×120(D)
*Demo unit available for rental
RF Driver
RF Driver
It can be used as a power source for high-frequency lasers and laser-module driving.
*Customizable upon request.
High-performance RF Driver Model: TLA 425
High-performance RF Driver Model: TLA 425
Specifications
RF Output: 4 W
Oscillation Frequency: 80 MHz
Output Impedance: 50 Ω
RF Rise Time: < 50 nsec
RF Fall Time: < 50 nsec
Power Input: DC24V
Q-SW Driver
Compact Q-SW Driver Model: TLA-428
“Low cost, High performance driver”
Features
Compact and lightweight. Suitable for equipment with limited space.
RF Power: Adjustable between 20~100%
Specifications
RF Output: 3 W (max CW)
Oscillation Frequency: 80 MHz
Fall Time: Below 10 nsec
ON/OFF ratio: Over 40 dB
Analog Modulation Control Input: 0~1 V
Power Input: DC 24 V ±2% (1 A max)
At Tohoku Electronic Industries, our history spans 30 years, from power sources for flashlamp-pumped YAG lasers to drivers for laser diodes (LD). Many customers in the industrial equipment and medical equipment fields use our products.
Three Strengths of Choosing Tohoku Electronic Industries
Stabilization of output and wavelength is important for laser oscillators. We achieve stable laser output through high-precision current control and temperature control by selecting and designing the right components to meet your specifications.
We have many years of experience in designing products to eliminate noise sources and selecting optimal components to achieve low noise.
We provide a one-stop service from design to manufacturing. We provide a stable supply of high-quality products in small quantities through our long-established parts procurement network, even during mass production.
Coverage area of LD driver
Main Features:
Adoption of noise resistance, Built-in APC (Auto Power Control) circuit (Feedback-driven circuit to control optical output consistently), ACC (Auto Current Control) circuit, Precise temperature control (Peltier control)
Specifications for LD Driver (Pulse)
Repetition Frequency: Up to several tens of kHz
Pulse Width: μs
Multi-channel Temperature Control: LD, Crystal
Rise Time: Below 2μs, Fall Time: Below 100ns
Compatible from low to high power LD, with a track record up to 90A. Please consult for other matters.
Examples of Manufactured CW LD Drivers
１．Board type
Features
Optimal temperature stability for measurement and analysis.
Customizable upon request.
Supports from single units to mass production.
Specifications
Input Voltage:
LD section: 1 V ~ 14 V
Control section: Within 12 V ±10% (AC adapter)
Output Current: 0~15 A
LD Current Setting: 0.00 A ~ 15.00 A (0.01 A step)
LD Control: ACC method
Communication Method: RS232C
Included: LD control software
Dimensions: 74 (W) x 27.4 (H) x 120 (D) mm
２．Universal Type
Features
Main Purpose: For processing
Customizable upon request.
Specifications
Power Supply: Single-phase AC 100 V ~ 240 V ±10%, 50/60 Hz
Max Power Consumption: 950 W (45 W for LD)
LD Driver Section
Max Current: 65 A
Max Voltage: 5 V
Current Stability: ±100 mA or less
Rise Time: 2 msec or less
Fall Time: 2 msec or less
LD Temperature Control Section
Peltier Supply Voltage: 48 V
Peltier Supply Current: 10 A
Temperature Setting Range: 15~35°C (Setting unit: 0.1°C)
Temperature Stability: ±0.1°C or less
Temperature Alarm Setting: Variable between ±1~10°C
Dimensions: 430 (W) × 230 (H) × 460 (D) mm
３．Universal Type
Features
Main Purpose: For processing
Customizable upon request.
Specifications
Power Supply: Single-phase AC 100 V ±10%, 50/60 Hz
LD Driver Section
Max Current: 0~6 A
Max Voltage: 2.5 V
Current Stability: Within ±0.5% during constant current operation
Q-switch Driver Section
Carrier Oscillation Frequency: 80 MHz ± 100 kHz
Q-SW Repetition Frequency: 0.1~99.9 kHz (0.1 kHz step)
RF Output: 4 W
RF Fall Time: 100 ns or less
RF Rise Time: 2 μs or less
LD Temperature Control Section
Peltier Supply Voltage: 8 V
Peltier Driving Current: 0~3.5 A
Temperature Setting Range: 0~40°C (Setting unit: 0.1°C)
Temperature Stability: ±0.2°C or less
Dimensions: 280 (W) × 120 (H) × 360 (D) mm
４．LD Built-in Type
Features
Main Purpose: For processing
LD Built-in Type
Customizable upon request.
Specifications
Power Supply: Single-phase AC 100 V ±10%, 50/60 Hz
Max Power Consumption: 800 W
LD Driver Section
Max Current: 65 A
Max Voltage: 2 V
Current Stability: Within ±0.5% during constant current operation
Current setting resolution: 0.05A or less
Q-switch Driver Section
Carrier Oscillation Frequency: 80 MHz ± 100 kHz
Q-SW Repetition Frequency: 0.1~99.9 kHz (0.1 kHz step)
RF Output: 0 to 20W
RF Fall Time: 100 ns or less
RF Rise Time: 2 μs or less
LD Temperature Control Section
Peltier Supply Voltage: 48 V
Peltier Driving Current: 10A
Temperature Setting Range: 15~35°C (Setting unit: 0.1°C)
Temperature Stability: ±0.1°C or less
Dimensions: 280 (W) × 350(H) × 500 (D) mm
５．2CH Type
Features
Main Purpose: For processing
Customizable upon request.
Specifications
Power Supply: Single-phase AC 100 V ~ 240 V ±10%, 50/60 Hz
LD Driver Section
Operating Method: CH1: Dropper method, CH2: Switching method
Max Voltage: CH1: 2.0 V, CH2: 6.3 V
Max Current: CH1: 7 A, CH2: 12 A
Current Stability: 1% or less
Current Setting Resolution: 0.01 A
LD Temperature Control Section
7) Number of Channels: 6ch (for LD and crystal)
Control Method: PID control or PI control
Temperature Setting Range: 10~99.9°C
Setting Resolution: 0.1°C
Dimensions: 440 (W) × 167 (H) × 430 (D) mm
Example of Pulse LD Driver Production
Features
Main Purpose: For processing
LD Built-in Type
Customizable upon request.
Specifications
Power Supply: Single-phase AC 100 V ±10%, 50/60 Hz
LD Driver Section
Driving Current: 10~110 A
Output Voltage: 110 V
LD Driving Rise Time: 10 μsec or less
LD Driving Fall Time: 10 μsec or less
Pulse Width: 1~300 μsec
Repetition Frequency: 1~100 Hz
Max DUTY: 3% or less
Cooling Method: Forced air cooling
LD Temperature Control Section
Temperature Control: Auto-tuning enabled
Peltier Control: PID method
Temperature Setting Range: 15~35°C (Setting unit: 0.1°C)
Temperature Monitor Points: Feedback control points (one for each)
Dimensions: 360 (W) × 420 (H) × 360 (D) mm
Features
Main Purpose: For processing
2CH Type
Customizable upon request.
FunctionalConfiguration
The device consists of the following functions controlled by a computer:① Operating control circuit (including RS232C communication)
② LD drive circuit (40 V/130 A) 2ch
③ Peltier control circuit (3 in series, 33 V, 5 A) 2ch
④ Temperature monitor circuit (5ch, 2ch on the LD side, 2ch on the cooling unit side, within the head)
Specifications
Power Supply: Single-phase AC 100 V ±10%, 50/60 Hz
LD Current Value: 0~130 A
Output Voltage: 40 V
Pulse Width: 50~250 μsec
Repetition Frequency: 1~100 Hz
Trigger Delay: 0~500 μsec
Trigger Type: INT-continuous / INT-single / EXT
Dimensions: 482 (W) × 177 (H) × 600 (D) mm
